RS transmission

[Mattheww044]

Hey guys I have a buddy that just got a JDM swap for his 99 RS and he is selling the tranny and diff and such.
I know I will need the tranny and rear diff so i have matching ratios. What else will i need to make this work on my 91 SS? Can I use my new clutch I just bought or do I need to buy one for the RS? Is the RS tranny stronger than our stock one?

This is pretty much my only option at this point for a tranny since mine blew up last night and I need it fixed ASAP. Thanks ahead of time

[Deride]

Need the RS clutch/flywheel and slave cylinder etc. As for strength it's probably exactly the same.

[Mattheww044]

is that all I would need? Tranny, diff, clutch,fw, pp, and slave cyl?

[Deride]

Is your car already a 5 speed? if so yea that and a release (throw out) bearing. Pretty sure you can use the SS master cylinder with the rs slave cylinder without any major issues.

[Mattheww044]

Yea my car is already a 5 speed. Is there any way to convert the RS trans to use my legacy clutch and all of that? Or do I need to convert to the RS push style by using the RS slave and clutch set-up?

[AWD_addict]

I'll be easier to use the clutch set-up meant for the RS. You can keep your SS master cylinder, as both should be 5/8" bore. But, you might be able to find an RS master and slave combo deal on ebay, and then both will be new. Also a good time to get a stainless clutch line.

[Florin1]

Did u say the swap is jdm? wouldn't that make it a wrx powertrain? which would be basically identical to your tranny besides the ratio...

[Mattheww044]

oh I'm sorry i worded that wrong. He got a JDM swap for his impreza so he is selling the stock stuff.

[wtdash]

Matt, you'll need the driveline, if not mentioned or need to change pinion flange on the rear diff. The pinion flange has different bolt spacing than the <94 stuff....been there/done that. The Impreza driveline may be too short as the Imprezas are shorter wheelbase....you can swap the flange from yours and reuse your line, but it's a PITA to get the flange off.

The good news is it may be an LSD like on the '91.

Edit: You'll also need the rear axles as the diff is an 'inny' vs having the stubs of the old stuff.

TD

[Mattheww044]

I decided it's not worth the hassle. I hbe a brand new clutch and all 4 CVs, I would do it if it was an "upgrade" but unjust don't think it's worth the trouble