1990 Supercat/coup

**Gumboot** · 09-14-2009, 01:16 AM

K, my buddy has a 1990 Merc Supercat with an automatic tranny. He just blew up the second transmission in under 3 years and I know he hardly pushes the car (I'd be waaayyyyy rougher with her). I don't know much about those cars or what transmissions they have but more importantly, what is a good susbstitute transmission to swap in that is fairly straight forward to install?

Cheers
Kevin

**tbirdtess** · 09-14-2009, 06:00 PM

Hello

If he has a Cougar XR7 It should be an AOD, if auto. 3.8 SC
If 5 speed M5r2

**vinnietbird** · 09-16-2009, 02:50 PM

Is he using used transmissions or rebuilt.If they are rebuilt,I'd find a better builder.When I had my AOD,I had it behind a strong running modified 5.0,and chirped the tires in the first three gears.The tranny took every bit of the beating.