/ 6 3 speed to a 4 ?

[68383GTS]

Ok I have a slant 6 3 speed on the tree.Can I bolt up a 4 speed up to the 3 speed bellhousing? If so will the drive shaft bolt back up,or do I need to modifiy it?

Thanks,Jim

 

[RustyRatRod]

I doubt it. Only if your bellhousing has the dual bolt pattern on it, can you bolt a 4 speed on. You need a dual bolt pattern slant six bellhousing. I think the only way they came was with the 5.125" bearing retainer opening for the 4 speed overdrive. If you're not running an overdrive, you'll need a 5.125" front bearing retainer for your transmission. Not hard at all to find. I have a bellhousing if you're intersted. As long as the output shaft is the same size, the drive shaft will interchange, because the transmissions are the same length.

 

[Princess Valiant]

an OD would work great behind a six ......and much easier .

i run my dart now with a slant six and OD ....it was a bolt in deal and ODs are still cheap and out there.

a 1 to 1 four speed is going to give you headaches like said ^