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T50 rebuild options

Posted: Mon Dec 22, 2025 12:46 am
by Kuromi_loves_toyota
ive seen a few different gearsets for the T50 offered by some companies, but some of them are hard to get information on, don't plan on rebuilding my T50 anytime soon, but id like to find out more information.

Greenline Motorsports sells multiple gearsets made by Revolver, but dont give any information on the different specifications. could anyone help find more info on this? or is this some information thats lost to time.

other options ive already got are Cusco's Type D gearset or one of Lampola Gearboxes Dog gearset.

id love to hear what anyone has to say

Re: T50 rebuild options

Posted: Tue Dec 23, 2025 11:21 am
by oldeskewltoy
If your plan is to mount this behind your stroker, I'd recommend looking into either a W58 upgrade using Niteparts bell housing, or a J160 upgrade using an SQ bell adapter. T50 just isn't strong enough, and it is more than just the gear sets that is suspect.

Re: T50 rebuild options

Posted: Tue Dec 23, 2025 12:41 pm
by Kuromi_loves_toyota
i had planned on going with lampolas aluminum gearbox housing, assuming I rebuilt my T50, but ill look into a J160 or an Aisin AZ6 conversion. Could you give me a little bit more information on the T50s shortcomings?

Re: T50 rebuild options

Posted: Wed Dec 24, 2025 1:23 pm
by oldeskewltoy
Kuromi_loves_toyota wrote:Could you give me a little bit more information on the T50s shortcomings?


Simple really the T50 began life as a T40 running behind 70-105hp("T" engine series). It later got the 5th gear, but the internals strength remained. Just as an example, the 18RG(140hp/130foot/pounds) ended up using the W series transmissions, where you'll be running even more power then that.