Need help finding a final drive kit - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Ethan Wagner · 07-12-2015, 07:02 PM

I have the automatic frs. I'm trying to find a good final drive kit for my car. So far the mods I have on it are oft stage 2 uel tune, tomei headers and OP, invidia catless FP, and invidia n1. If anyone has any suggestions that they want to share or recommend that would be great! I'm also looking for a shorter final drive like 4.8 or higher. Thx

kodyo · 07-12-2015, 08:08 PM

Weir performance has them for a good price. 4.88 is going to get you more in line with what a 4.56 would feel like in an MT. Buy the ring/pinion/solid spacer from weir. Email or call him, he'll know what to send you. If you're reusing the stock diff, you can reuse bearings as well, they'll be in good condition.

Buy new axle and pinion seals from an online Toyota parts place or you can get them from weir, but I'd replace those while you're at it.

FYI, solid spacer replaces the crush washer used to get the preload on the pinion gear bearings correct. It can get loose over time and cause excess wear, so solid spacer fixes that.

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07-12-2015, 08:08 PM	#2
kodyo Senior Member Join Date: Jan 2013 Drives: Scion FR-S Location: Los Angeles Posts: 686 Thanks: 597 Thanked 256 Times in 173 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Weir performance has them for a good price. 4.88 is going to get you more in line with what a 4.56 would feel like in an MT. Buy the ring/pinion/solid spacer from weir. Email or call him, he'll know what to send you. If you're reusing the stock diff, you can reuse bearings as well, they'll be in good condition. Buy new axle and pinion seals from an online Toyota parts place or you can get them from weir, but I'd replace those while you're at it. FYI, solid spacer replaces the crush washer used to get the preload on the pinion gear bearings correct. It can get loose over time and cause excess wear, so solid spacer fixes that.

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