1st gen dodge Transmission swap or gear splitter?
#1
1st gen dodge Transmission swap or gear splitter?
My 1991 D350 has a 3 speed auto transmission which is not friendly on the highway, I'd love to get the revs down. Should I install a gear splitter, or can I swap out the 3-speed for a newer better (Allison) transmission. Discussion is appreciated got the $$ set aside for whatever is best.
#5
the awesome thing about Gear Vendors is their warranty, you can always get a better converter, i think going with a newer auto trans is a bit more difficult as you have to get a Throttle positioning sensor, and a wiring harness for it, or you could go to a 5 or 6 speed manual trans like i plan to do. with either GV or different trans you will have to shorten the drive shaft and have it re-balanced.
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#7
yea ive been thinking of doing a g56 swap been reading a few forums where people have done it, and its not too hard of a swap, all you need is a 2nd gen adapter plate and a 2nd gen starter and trans mount, then get the clutch of your choice, along with a flywheel, most likely will have to shorten the drive line
#8
Depending on production year, the G56 had two different ratios for 6th. When I went from auto to manual, my overdrive went from 0.72:1 to 0.8:1. May not sound like much, but, I traded off 10% of my top end, and about 10% of my highway MPG, in order to get more reliability. You going from a 1st-gen 3-speed non-locking trans will probably gain some MPG. Do it if you have the chance.
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