swapping 904 to a 727

[tnrbrown]

I am replacing my worn out 318 and 904 with a 360/727 combo. I understand the 904 and 727 are different lengths. So I have two questions:

1. Do I need to shorten my driveshaft. I would assume the difference in lengths?
2. Do I need to replace the transmission mount or move it back any?

Thanks

 

[ramenth]

Yes, the 727 is longer, you'll need a short driveshaft.

Mount stays in same location. The tailshaft is what added the length.

As for a different mount, I'm not sure on that one. But I don't believe so.

 

[burntorange70]

Mount is the same.

 

[ramenth]

Mount is the same.

That's what I thought but didn't want to say for sure. I know every other car I've done the swap on, mounts were mounts.

 

[Aussie Challenger]

Slip joint yoke is a different size also, larger, a manual 4 spd will fit also.

 

[tactransman]

Length difference (driveshaft) is about 4 inches. The filler tube is different,the dust cover is different.

 

[71droptop]

trans swap

did you have to change cross member?

 

[tactransman]

Cross member is the same.

 

[BIGSHCLUNK]

I belive the yokes are different also