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View Full Version : custom transmissions for KA and SR...


hurleyboi514
08-08-2004, 08:20 AM
ive found some pretty cool info. im not 100% certain on this stuff, but its very possible. i was at a friend of mine's shop, and he had a bunch of tranny's laying around. a few of them looked like nissan tranny's b/c the bell housing looked identical to my KA bell housing. sure enough, they were old 240Z, 260Z, 280Z, 280ZX tranny's. she said her dad uses them for her MG's. anyways, i talk to him, and he uses nissan tranny's to replace his MG trannys (with use of adapter plate). then he goes on and tells me how each box has different ratio's, and he mixes and matches them to get the gear set up to his preference. he used a tall first, then 2nd, 3rd, and 4th, are really tight together, and then he uses a tall 5th gear for cruising and gas milage... now, the only part im not sure about is the rear end of the tranny. its not quite the same, but it looks like it should match up with the rear bell housing of our tranny's. now, if we could do that, we could make any gear box we'd like. also, you should be able to use this on an SR since you can use an KA tranny on an SR with a bell housing swap. so, you SR guys may have some custom gear box options now as well. im gonna try and talk to him some more and see what it'd take to get the rear of the KA tranny to work on these datsun gear sets. that was kinda long but i may have stumbled onto something pretty cool!! :)

1998cc
08-08-2004, 03:09 PM
The 280zx uses a t-5 tranny which is the same as the mustang 5.0.

silviasichigo
08-08-2004, 07:12 PM
Well over I have an sr and I am going to use a R33 Skyline Mission with a cut solid drive shaft. the bell housing was fabbed to bolt to the engine but this mission is good for up to a 1000 hp, So with some forged pistons, 272 I/E cams, TD-06 25G, and a proper tune the 580Hp you make will be no problem

CustomS14A
08-08-2004, 07:17 PM
1st gear = 2.717 2nd gear = 1.722 3rd gear = 1.232 5th gear = 0.805/0.835
OS Giken cross 3 gear kit SR20DET-FR $1311
OS Giken cross 5 gear kit SR20DET-FR $1826

Go spl part and do some research because a s2 tarnny and a ka tranny gears are the one and the same
so what i thing thats this should work out for the best...