Tranny

Hey my tranny recently broke, so i was thinking about just pulling it out and repairing it if it can be done if not swap in a def one, but i was wondering what tranny opptions do i have to mybe upgrade to.

They say the mid to late 80's RX-7 tranny fits if you keep the bellhousing and end of the B tranny. I don't know the benefits of using the RX-7 tranny, but maybe someone can tell us

You can find more info on it on the Mazdatrucking.com site and I think there is a thread or 2 on the ssm forums as well.

yes the 86-91 rx-7 5 speed na tranny will bolt up to the b series truck bell housing and tailshaft. Same strength box, different gear ratios- not so low.

mazdatruckin.com has a write up on why and how to do the rx swap

Thats the link to the Mazda Truckin page on trannies.

Very helpful. I now see I wanna 89-91 RX-7 tranny for it's higher 5th gear. I can't stand driving my truck at anything over 50mph due to the engine whining.