NEW! 350z diff to S14/S15 subframe swap bushings!

[maverickmotorsports]

https://cdn.shopify.com/s/files/1/0171/2992/products/image_ce141aea-d056-49a0-acc0-d766d91cecd8_1024x1024.jpg?v=1484072333

UPDATED DESIGN! I took customer feedback and made the new ones easier to install. This design has a much larger lead in to help alignment. The last little bit is pressed on so there is no clunking or other issues.

Introducing a bolt in way to add a stronger 350z/370z/G35/G37 differential to your existing s14/s15 subframe! No cutting, welding or fabrication.

What are they?

Three(3) bushings that are precision CNC machined from 6061-T6 aluminum and then anodized to a MIL-8625F finish. The bushings are engineered to place the differential in the center of the subframe and maintain the proper factory driveshaft angle. The bushing kit is only able to be used with s14/s15 subframes or other Nissan subframes which use the 2 larger diff mounts on the rear cover.

What do they do?

The bushings allow you to drop in a stronger and cheaper Z/G differential into your s14/s15 subframe. Previous the only other way to do this was to cut and weld but there is NO cutting or welding required for this swap.

Benefits:

-Stronger, newer and more readily available Z/G differential

-Wider range of ratios available, OEM and aftermarket

-Ability to use larger and stronger 350z axles

-Better matched ratios those doing 350z transmission swap

-Uses STOCK 240sx hubs, works with 4 and 5 lug cars.

-Potential to use 350z speed sensor built into diff for actual wheel speed.



What is needed for this swap?

- Maverick Motorsports Z/G conversion bushings

- 350z/370z/G35/G37 differential, avoid the G37 AT diff because it has a different driveshaft flange

- 350z/G35 axles

- Driveshaft made to your length and drivetrain setup(not available here).

Need to know:

Due to the large variety of rear knuckles, arms, alignments please make sure the axles are not over compressed or over stretched. Failing to do so will cause premature breaking of the axle and other driveline components.

ORDERING:

https://www.maverick-motorsports.com/collections/frontpage/products/350z-370z-conversion-bushings

[brndck]

very cool, but will z33 diff with z33 axles in s14 subframe (with stock s14 rear LCA and knuckle) cause binding? or will you have to run extended LCA or zero camber in the rear to compensate?

[rbs14kouki]

My question is the same on here then facebook

Is the flange (where the driveshaft bolt) of the diff at the same position compare to a s chassis diff ? Open diff s14 is what i have right now ... im scared my carbon driveshaft will be to long if i go this route

[UniqueAutoCreations]

Looks like a cool product! I haven't seen this before. Kudos for doing something different! Information on axle compatibility between stock S14 and stock Z33 would be helpful. If the length needs to be altered you could offer that as an additional service. Customers could send you their axles and you could have a x-week turn around time. The driveshaft is something else you could offer on a "made to order" basis since people swap everything under the sun into these cars. If you aren't set up to build/modify those parts perhaps you could partner with a shop that does.

People like easy when it comes to installs so if you could offer the other parts needed you could pick up some extra business off the additional parts for those interested in your innovative solution. Good luck with your sales!

[mλx_s13]

Why can't you just use a 300zx diff with 350z half shafts to achieve the same effect?
in a s13/s14

[Jorgs_7]

Attempted to install these on S14 subframe last night / Z33 diff

I understand that most bushings should be a press fit, however, since the bolt holes are eccentric, its very difficult to press the bushings in while having them properly located. Once they're in, there's no way of rotating.

They should be more of a slip fit, like PBM's bushings.

[240sxScores]

Why can't you just use a 300zx diff with 350z half shafts to achieve the same effect?
in a s13/s14

The Z32 Differential is a R200 just like the stock s13 differential, hence why the viscous diff and their R&P are direct swaps.
The Z33 diff is a R230 I believe, has readily available R&P swaps and more LSD options on top of having a stronger R&P and axles.

[travon47]

The Z32 Differential is a R200 just like the stock s13 differential, hence why the viscous diff and their R&P are direct swaps.
The Z33 diff is a R230 I believe, has readily available R&P swaps and more LSD options on top of having a stronger R&P and axles.

Z33 is not a r230, it is still a r200. The rear bushing did not fit on my 05 g35 auto trans. the knurl on the stud is too large for the bushing how it was machined and I had to modify it. Also like Jorgs said, they are a press fit and I have no idea how you can line these up properly while pressing them in, not to mention I hogged the shit out of my diff flanges on the front just to make it start to slip in for the first part( how these are machined).
Also I have a little bit of camber, but my axles are 100% compressed with the diff just sitting in the subframe without the mounts( hardly off from where it would sit) So it looks like extended rlca are a must, atleast for me.:facepalm:

[240sxScores]

Z33 is not a r230, it is still a r200. The rear bushing did not fit on my 05 g35 auto trans. the knurl on the stud is too large for the bushing how it was machined and I had to modify it. Also like Jorgs said, they are a press fit and I have no idea how you can line these up properly while pressing them in, not to mention I hogged the shit out of my diff flanges on the front just to make it start to slip in for the first part( how these are machined).
Also I have a little bit of camber, but my axles are 100% compressed with the diff just sitting in the subframe without the mounts( hardly off from where it would sit) So it looks like extended rlca are a must, atleast for me.:facepalm:
My bad.

Could you measure the distance between the snout mounting holes then make a U shaped bracket with similar bolts. Slip bushings on bracket then hold up to differential and twist them until everything lines and press in

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[travon47]

My bad.

Could you measure the distance between the snout mounting holes then make a U shaped bracket with similar bolts. Slip bushings on bracket then hold up to differential and twist them until everything lines and press in

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That could definitely work for the front, but I think I am still going to take .001" off of them on a lathe so I can get them out again. The reason I want to do this is I have an auto diff (3.3) which I am going to weld because there isn't a aftermarket lsd (1.5 or 2 way) for it, atleast that I have found. So once I pick up a manual(3.5) diff and get a lsd I can swap that in.

[Jorgs_7]

That could definitely work for the front, but I think I am still going to take .001" off of them on a lathe so I can get them out again. The reason I want to do this is I have an auto diff (3.3) which I am going to weld because there isn't a aftermarket lsd (1.5 or 2 way) for it, atleast that I have found. So once I pick up a manual(3.5) diff and get a lsd I can swap that in.

Yup.


The bushings & diff ears are +/-.002" of each other.

Its too tight. Gonna machine these as well.

Pretty silly to have to machine something that was ≈$170 to begin with

[JM216S14]

What driveshaft do you use with this diff setup?

[Lindsay Lohan]

this is + cool.:hsdance:

[maverickmotorsports]

Thank you everyone for all the feedback and the orders! This was the first batch that went out and once things get out in the wild I have more and more people giving good feedback so thank you for that.

The next batch will have a small change to make the install easier and more straightforward. Functionally it will stay the same and still work like it should.

As always I appreciate all the feedback and if you guys come up with anything please let me know. It's impossible for me to 100% test every case and the results you guys give help me make a better product.

[NorcalAP2]

Attempted to install these on S14 subframe last night / Z33 diff

I understand that most bushings should be a press fit, however, since the bolt holes are eccentric, its very difficult to press the bushings in while having them properly located. Once they're in, there's no way of rotating.

They should be more of a slip fit, like PBM's bushings.

Did you happen to try freezing them before trying to fit them in? Just curious to see if that would make enough of a difference.

Im not home to try and see how much shrinkage you would get from room temp vs freezing temp. I will do this when I get home and post results unless somebody beats me to it.

also - does the 240sx rear driveshaft flange mate up perfectly to the 350z one since they are R200's?

[travon47]

Did you happen to try freezing them before trying to fit them in? Just curious to see if that would make enough of a difference.

Im not home to try and see how much shrinkage you would get from room temp vs freezing temp. I will do this when I get home and post results unless somebody beats me to it.

also - does the 240sx rear driveshaft flange mate up perfectly to the 350z one since they are R200's?

I tried but did not do anything, granted I did not heat up the diff. The driveshaft hub centric ring fits onto the diff but the holes on the diff are spread out farther resulting in needing to drill new holes in between the old ones. I had my bushings machined down .001, not quite sure if they fit yet since I have not got them back but will update once I do.

[JZX90]

What else do you need to do this swap?

[wastedgate]

Any update on these bushings. Website hasn't been updated since February.

[90S13dude]

I also like info on this.

[97SerevoSX]

very interested in this. This looks like a good alternative too,
http://zilvia.net/f/showthread.php?t=267957

[funkymonk]

Anybody got updates on these? Pics and fitting info would be great :D

[240sxrb30]

Anybody got any updates on these yet? Are they easier to install and get em lined up

[TheRealSy90]

I'm curious of the differential height and angle when installed with these. Does the differential sit down lower in the subframe now? Or is it angled downwards with the front lower than the rear? I only ask because you used to have to chop the front mounts and move them up higher to run these.

[RalliartRsX]

Is this thing on?? Any updates Maverick??

[ModulusTwo]

I ordered a set of these probably back around February. I finally got around to installing these on my subframe and 350Z diff.
It seemed pretty straight forward.

I dinged up the rear bushing pretty bad because I didn't interface the hammer and the bushing. I placed 1/8 plate steel on the bushings when I hammered them into the diff, which made it look a little nicer.

I'm currently compiling video clips and will have an install "guide" on youtube in the next week or so.

Only issue I'm running into right now, is getting the axles put in.
On the LH (US driver side) axle, I had to compress it all the way, and the bearings and grease pack popped out the back of the axle. I need to pack it back up and try it again tonight.
I have adjustable arms on my rear end, so I'll try extending all of them before trying to put in the axles again.

I should have it all assembled and back on the car tonight.

[ModulusTwo]

Donor 350Z Subframe for diff and axles.
http://i836.photobucket.com/albums/zz285/alexdane56/S14%20build/IMG_20180901_232312_737_zpsyenem7qg.jpg

Really beat the hell out of this back bushing.

http://i836.photobucket.com/albums/zz285/alexdane56/S14%20build/20180910_204416_zpsqjbuzoqm.jpg

http://i836.photobucket.com/albums/zz285/alexdane56/S14%20build/IMG_20180910_204941_419_zpsss6glr5i.jpg

http://i836.photobucket.com/albums/zz285/alexdane56/S14%20build/20180911_192007_zpsbg7pbp9r.jpg

http://i836.photobucket.com/albums/zz285/alexdane56/S14%20build/IMG_20180911_192817_111_zps85xdmshf.jpg


More to update tonight.

[240sxrb30]

Hey did u get installed yet bro

[ModulusTwo]

Yes, I have it all installed!
I made a post the other day, but it said it was awaiting moderator approval.
I'll see if this allows me to post pictures of it.

I beat the hell out of the rear bushing trying to get it in. The ones on the diff, I interfaced with a plate of steel.

Axle was a pain to get in the driver side, so I'd highly recommend having adjustable arms to get it to fit well.

I ordered a new flange for my driveshaft because I wasn't confident in my drilling of the pinion flangehttps://uploads.tapatalk-cdn.com/20180923/3d569883027da0abcf715091f8139ebc.jpghttps://uploads.tapatalk-cdn.com/20180923/70297c1fd09475e843d149a947d88d76.jpghttps://uploads.tapatalk-cdn.com/20180923/e6e39dd7e66148f902ed70b8b51286db.jpghttps://uploads.tapatalk-cdn.com/20180923/ac1761c388c03d333f0c542d293dc14e.jpghttps://uploads.tapatalk-cdn.com/20180923/44a89225a5bbefbf6807431467cae2e1.jpghttps://uploads.tapatalk-cdn.com/20180923/7382341e00f0f47a81bc233277f4bab7.jpghttps://uploads.tapatalk-cdn.com/20180923/d56a1f3ff4ae38506d33f58bcc496ded.jpghttps://uploads.tapatalk-cdn.com/20180923/aa6662b7e69a37f645fd33f132c3416c.jpg

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[koopas14]

I ordered a new flange for my driveshaft because I wasn't confident in my drilling of the pinion flange

https://uploads.tapatalk-cdn.com/20180923/d56a1f3ff4ae38506d33f58bcc496ded.jpg

https://uploads.tapatalk-cdn.com/20180923/aa6662b7e69a37f645fd33f132c3416c.jpg

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Do you happen to have the part number for the new flange?

[koopas14]

Found the part it’s a spicer 2-2-2029Do you happen to have the part number for the new flange?

[ModulusTwo]

I'm sorry, but I do not know what the part number is. There was no casting or number on the flange.
I figure'd it would be much cheaper if I could've found it from a retail store, rather than custom ordering from D.S.S.

If I can get more information from D.S.S. , I'll post more information about it.

[Sr20-Vert]

So I’ll be able to use the speed sensor in diff for my s14 cluster. Can you explain what else is needed or how I do that

[brndck]

So I’ll be able to use the speed sensor in diff for my s14 cluster. Can you explain what else is needed or how I do that

you use the existing abs sensor and something like a Dakota box to generate a signal that the cluster will see as a speedometer input

[Jretana]

I am a little late on the conversation, but I just did the same swap, and my axle angle is very off, just bought the GKTech splins to lower the axles, did you have the same problem?, if so how did you did it

[brndck]

I am a little late on the conversation, but I just did the same swap, and my axle angle is very off, just bought the GKTech splins to lower the axles, did you have the same problem?, if so how did you did it

what gktech part? how does it lower the axle?

when you say "your axle angle is very off"..... is the diff too high? too low? too far forward? please be more specific. Photos help a lot.

[Jretana]

The differential sits lower, so the axles point upwards, the GKTech drop spindles lowered the axles 40mm, I read people having the issue but no solutions, so want to know what people have done to correct the angle and get axle line more straight, sorry tried to download some pics but didn't work

[foreverdeath]

These adapter bushings are no good, lowering the diff approximately 2 inchs from the OE postion making huge angles on lowered cars. The only proper way to run a 350z diff is to mod the subframe. https://uploads.tapatalk-cdn.com/20200123/8f6c12cda2772890d982b3a63ceaf75b.jpghttps://uploads.tapatalk-cdn.com/20200123/802dd5a7feb512d8edcf98fce27104b8.jpghttps://uploads.tapatalk-cdn.com/20200123/c11d78758873b9e047d9d6758f496a85.jpg

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[TheRealSy90]

The differential sits lower, so the axles point upwards, the GKTech drop spindles lowered the axles 40mm, I read people having the issue but no solutions, so want to know what people have done to correct the angle and get axle line more straight, sorry tried to download some pics but didn't work

My friend, drop knuckles DO NOT move the axles. You cannot move the axles outside of the hub center, which is always in the middle of the wheel.
Drop knuckles only move the suspension arm pickup points...

[brndck]

The differential sits lower, so the axles point upwards, the GKTech drop spindles lowered the axles 40mm, I read people having the issue but no solutions, so want to know what people have done to correct the angle and get axle line more straight, sorry tried to download some pics but didn't work

my first suggestion would be to raise the car.

or raise the subframe.

or chop the subframe and raise the diff.

my next question is, considering the axle angle of a stock height 240, then consider the fact that we lower these cars 4-6" or more, how is 1-2" height difference making a huge impact? i'm not sure I understand your problem entirely.

[Jretana]

Yes I asked myself the same questions when we drop the cars, the problem apparently comes with the 350z diff, I really appreciate the input, definitely I am cutting the subframe to raise the diff to OEM high. Thank you everybody

[foreverdeath]

my first suggestion would be to raise the car.

or raise the subframe.

or chop the subframe and raise the diff.

my next question is, considering the axle angle of a stock height 240, then consider the fact that we lower these cars 4-6" or more, how is 1-2" height difference making a huge impact? i'm not sure I understand your problem entirely.

The only issue with the high angles is that it puts extra load on the CV joints making them more prone to breaking under load and increases drivetrain drag. This is a big issue with tripod joints like 240 axles but IDK if it applies to rzeppa style like the 350z axles.

[t66-240]

The only issue with the high angles is that it puts extra load on the CV joints making them more prone to breaking under load and increases drivetrain drag. This is a big issue with tripod joints like 240 axles but IDK if it applies to rzeppa style like the 350z axles.

It's not the joints that break, rather the 29 spline (30mm) output shaft of the axles that break. The more the angle is off the more stress is put on the shafts.

[t66-240]

These adapter bushings are no good, lowering the diff approximately 2 inchs from the OE postion making huge angles on lowered cars. The only proper way to run a 350z diff is to mod the subframe. https://uploads.tapatalk-cdn.com/20200123/8f6c12cda2772890d982b3a63ceaf75b.jpghttps://uploads.tapatalk-cdn.com/20200123/802dd5a7feb512d8edcf98fce27104b8.jpghttps://uploads.tapatalk-cdn.com/20200123/c11d78758873b9e047d9d6758f496a85.jpg

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That's a s13 subframe correct?

[foreverdeath]

Yes I started actully started mounting the diff recently. I didnt know it's mainly the shafts that fail on my KAT on the driver side one of the tripod joints was starting to break thru the cup. https://uploads.tapatalk-cdn.com/20200128/59a20faf8de60f9f320682c6aeb30afc.jpghttps://uploads.tapatalk-cdn.com/20200128/ffca4147811d0c6af939c44dd29fed95.jpg
https://uploads.tapatalk-cdn.com/20200128/9a632ddf9a3b5160bd6fc1f1541e2692.jpg

[t66-240]

Yes I started actully started mounting the diff recently. I didnt know it's mainly the shafts that fail on my KAT on the driver side one of the tripod joints was starting to break thru the cup. https://uploads.tapatalk-cdn.com/20200128/59a20faf8de60f9f320682c6aeb30afc.jpghttps://uploads.tapatalk-cdn.com/20200128/ffca4147811d0c6af939c44dd29fed95.jpg
https://uploads.tapatalk-cdn.com/20200128/9a632ddf9a3b5160bd6fc1f1541e2692.jpg

Cool. are you using the R51 cover or the Z33? Either way can you give me the measurement from the top of the subframe to the cover bolt(s)?

Thanks!

[foreverdeath]

R51 yeah I pm you messurements went I get a chance.

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[t66-240]

If I'm looking at this right ones in this pic, it looks like they are center line with the large hole in the center?

https://uploads.tapatalk-cdn.com/20200123/802dd5a7feb512d8edcf98fce27104b8.jpg

R51 yeah I pm you messurements went I get a chance.

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[foreverdeath]

It's close I used a j30 cover to find the drivers side hole then just measure for the 2nd one that the r51 uses

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[TheRealSy90]

So now we know the 2-bolt Pathfinder R51 cover bolts to the z33 differential. Good stuff.

[brndck]

So now we know the 2-bolt Pathfinder R51 cover bolts to the z33 differential. Good stuff.

very good news, now too bad no one makes an aftermarket R51 diff cover.
My z1 z33 diff cover is very nice, and an excellent price, but i'm still wary about only 1 mounting bolt.

[t66-240]

very good news, now too bad no one makes an aftermarket R51 diff cover.
My z1 z33 diff cover is very nice, and an excellent price, but i'm still wary about only 1 mounting bolt.

The R51 cover is finned and nice. Also the diffs are plentiful and cheap. I found many for $75.... a lot less than an aftermarket cover.

[foreverdeath]

R51 cover is is basically an upgrade to the z33 cover. Heavily finned and 2 bolts. And you use the the r51 axles... jk but those axles flanges are huge and they run the z32 TT outer spline I'm fairly sure. Stubs do swap out with z33.https://uploads.tapatalk-cdn.com/20200129/b72594bbf3e07033e8185ae66709fc3c.jpg

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[foreverdeath]

If I'm looking at this right ones in this pic, it looks like they are center line with the large hole in the center?The holes are 2 3/8" from the top lip. Ended up replacing the entire back to ensure rigidity.https://uploads.tapatalk-cdn.com/20200218/1920046121b90b1114e969013c3ad56f.jpghttps://uploads.tapatalk-cdn.com/20200218/b7a93e6bc8eb777d8763911b20e54472.jpg

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[TheRealSy90]

The holes are 2 3/8" from the top lip. Ended up replacing the entire back to ensure rigidity.


Awesome stuff man. How much to do up another one and send it to me haha.

You using regular z33 stubs and axles or did you get the z33 stubs shortened?

[foreverdeath]

Gona shoot for stock parts. If axles are to long which I know they are close Ill just get dual caliper adapters for an extra 1/4". I'll think about it I used material is had laying around 1/4 plate, 3/16 flat stock and 1/8 plate from random projects. I do know how to do it right tho now. Had a few challenges making it.

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[t66-240]

Gona shoot for stock parts. If axles are to long which I know they are close Ill just get dual caliper adapters for an extra 1/4". I'll think about it I used material is had laying around 1/4 plate, 3/16 flat stock and 1/8 plate from random projects. I do know how to do it right tho now. Had a few challenges making it.

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foereverdeath, did you figure this all out?

Did you use an LSD or still open diff?

Thanks!

[foreverdeath]

foereverdeath, did you figure this all out?



Did you use an LSD or still open diff?



Thanks!Everything is in andready to test drive just waiting on my driveshaft which I had to get extended an inch. It should be done sometime this week then it's down to alingment and seeing if can get the rear tires to still fit after widening the rear +9mm with GKTECK RLCAs. Tire fitment is really close and I'm not quite happy with axle free play but well see what happens soon.https://uploads.tapatalk-cdn.com/20200518/23c09bb6c7d130c987076bd9de78aabb.jpg

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[TheRealSy90]

The Z axles definitely have way less in-out plunge than 240 axles. Just a side effect of the CV design. Tripods can move way more than the rzeppa.

[foreverdeath]

Drove it yesterday briefly no issues or weird noise from the rear but I didn't far after one my front hub bearings started making noise from swapping the knuckles.

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