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Buick 225 transmission swap suggestions

Posted: Thu Feb 28, 2013 6:07 pm
by Don
I'm helping a neighbor sort out a good swap for the Buick 225 in his CJ-5. The T-98 is toast. How tough is an SM420 with the dana 18 transf?

Posted: Thu Feb 28, 2013 7:20 pm
by White trash
Must be Mike's cj? I know there are a bazillion of them out there set up like that. Whenever we have the time to get up to dads the 420 is coming out of the 58 when I scrap it. Shifts smooth and doesn't make any noise that I've heard over the truck. :lol:

Posted: Thu Feb 28, 2013 8:35 pm
by Don
Ya, it's Mikes. I'll read into that SM420 swap more. I'm assuming it's 2wd.

Posted: Thu Feb 28, 2013 9:34 pm
by 79chevy39.5's
There's a cj in my garage with one in it behind the 258

Posted: Thu Feb 28, 2013 11:13 pm
by White trash
The sm420 never existed in stock married form with a t case so yes its a 2x trans. That jeep was doing fine for all those years till he screwed up the firing order and started throwing money at that engine trying to fix it. :lol: Then along came some dumb yotard with an eye for random details to see his faux pas and make that little beast run. :lol:

Posted: Fri Mar 01, 2013 6:17 am
by tobyw
If you can't find another T-98, then an SM-420 is by far the best bet. In terms of a manual transmission swap, it doesn't get much simpler.

Posted: Fri Mar 01, 2013 7:02 am
by bobracing
What about the T18 Ford trans? Believe it's a close relative of the T-98.
The T18 is also a little more compact than the SM420 that hangs low.