Tranny swapability question

[Nate Stuart]

I believe that the final drive ratio is different on the 5ktq box,
making the rear diff a different ratio too. So you would somehow have to
mix and match rear diff gears to get things to spin at the same speed.
At least that is my understanding...

HTH!
-Nate
'89 90tq
www.newtsplace.com/90tq

PS: New turbo conversion FAQ I built is now online and ready for more
content! Feel free to add whatever you like. Visit
http://www.newtsplace.com/90tq/faq.php

Mihnea Cotet wrote:
> Hello all!
>
> I'd like to know if it's possible to swap an 85-86 5ktq tranny in place of
> a 4kq "US" code tranny ... as in July I'll be swaping a turbo engine with
> EFI and lots of goodies in my car and I know for a fact that my tranny is a
> particularly short ratio type, I'd like to put a 5ktq locker tranny in my
> car as it has taller gears and allows for higher top speed as well as lower
> RPMs at legal highway speeds (120-130 km/h), which could improve my fuel
> mileage...Who has a BTDT on this one? The familiy album shows a different
> type of rear diff housing so I'd like to know if this is feasible at all or
> not.;
>
> Thanks in advance,
>
> Mihnea