c6 tranny 302/351

[army_guy2533]

i currently have a 302 in 72 w/ the c6...im changing to a 351w i DO KNOW that the tranny will fit the 351 BUT my question is this..im buying a new beefed up C6!! ive been told therer is bolt flange and slip joint..does it matter or will i be able to say change the driveshaft?? i dunno that much bout trannies and rearends and that

[flyboy2610]

Take a look at the driveshaft that you have now and get the C6 with the same tail end. If the C6 came from a car it will most likely have a slip joint. If it came from a truck and has a 2 piece shaft it will have a bolt on flange.
You cannot run a bolt on flange with a 1 piece shaft, as there will be no provision for the shaft to move as the rear end moves up and down.

[army_guy2533]

could i just change the drive shaft and the tranny then together...has long as they match??

[Leadfoot]

the small block trans with a flange is very rare and I only seen it once on a 6 cylinder 68 f250 with factory 4.10s and the trans had an aluminum bell housing and a cast iron body I belive it was a commercial C4 spin off of some sort because it used the same valve body as the early C4s. (67 stile)and was not a C6 or a Fmx.

[bleedfordblue]

A beefed up c6???? That's like beefing up a solid chunk of steel!