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View Full Version : How to get pinion nut off?


On2
09-30-2008, 09:51 PM
Damn that thing is on tight! I tried breaking it with a breaker bar + cheater + my leg and it wouldn't budge. Any tips?

I decided to tear apart my current pumpkin as a learning experience and to get the Cusco LSD out to sell. I got eveything out except this pinion.

I'll just have to learn how to measure backlash and all that once I start assembling the new pumpkin HLSD and 3.36 R&P.

This is fun seeing how everything bolts into the pumpkin. It doesn't seem so bad now. Can't believe I was about to pay someone $250+ to do this.

Oh and I don't have an impact.

v-empire
09-30-2008, 10:13 PM
i use and impact gun.

BAM!!

done

Ben G
09-30-2008, 10:55 PM
go to harbor freight and buy a cheap impact it will do the job

On2
11-13-2008, 10:08 AM
go to harbor freight and buy a cheap impact it will do the job

What else do I need besides the impact gun?

projectRDM
11-13-2008, 10:19 AM
What else do I need besides the impact gun?

Air? The electric impacts they sell often aren't powerful enough, but you may get lucky. I have both, the electric one is a Ridgid, super nice, and I find I never get it out of the case most times. The air one gets worn out though.

redline racer510
11-13-2008, 11:03 AM
get you a craftsman air compressor and one og their impact guns and socket sets and your good.

duffman1278
11-13-2008, 11:11 AM
Exactly what everyone said. I used a compressor with my impact gun and it was out with no sweat.

!Zar!
11-13-2008, 11:20 AM
Air? The electric impacts they sell often aren't powerful enough, but you may get lucky. I have both, the electric one is a Ridgid, super nice, and I find I never get it out of the case most times. The air one gets worn out though.

Ridgid elec impact guns are worth while?

Every one I run into sucks pretty hard.

It would be nice to have a quality electric gun because I don't want to fire up the compressor for late night jobs.

projectRDM
11-13-2008, 12:13 PM
Ridgid elec impact guns are worth while?

Every one I run into sucks pretty hard.

It would be nice to have a quality electric gun because I don't want to fire up the compressor for late night jobs.

It's not the best by far but it's better than a few others I've used in the past. Still it won't break anything loose above maybe 60ft-lbs. I had a Dewalt one time that wouldn't even break loose the hood hinge bolts.

JRas
11-13-2008, 01:53 PM
the pinion nut and the pinion spin as one so when your trying to loosen the pinion nut the pinion itself is turning.. you have to keep the pinion/driveshaft part from moving while trying to loosen the nut... no bueno

basically Nissan has a special tool that connects to the driveshaft part to keep it from moving so you can loosen the nut.

I was in the same shoes, I was not able to get it off...

I took it to the shop where I was getting my backlash and tooth contact adjusted and they were able to get it off.

On2
11-13-2008, 08:23 PM
the pinion nut and the pinion spin as one so when your trying to loosen the pinion nut the pinion itself is turning.. you have to keep the pinion/driveshaft part from moving while trying to loosen the nut... no bueno

basically Nissan has a special tool that connects to the driveshaft part to keep it from moving so you can loosen the nut.

I was in the same shoes, I was not able to get it off...

I took it to the shop where I was getting my backlash and tooth contact adjusted and they were able to get it off. Yeah I'm thinking I might just do that cause even if I get the tools I have to figure out how to keep it from moving. Might just have an experienced shop deal with it.

JRas
11-13-2008, 09:24 PM
you're using a new gear ratio correct? if so, I suggest taking it to a shop anyways

adjusting backlash and tooth pattern isn't a first timer thing