changing transmissions

[sandersracing]

has anyone ever done this. will I have to get another drive shaft or can i use the same one that is already in the car.

[junior]

There are some of the 400 with the same output shaft as the 350's but most of them have the large output, the ones with the small one can work with same driveshat as the 350. If you are thinking about using it in a race appliction there would not be any advantage and it is a lot heavier

Edited August 1, 2009 by junior

[sm44]

and the 400 uses more hp

[sandersracing]

the 400 I got uses the larger style out put shaft. this is just for a toy that I have ben putting off for along time I got rid of all my 350's and kept the 400 so was hoping i could just drop

Edited August 4, 2009 by sandersracing

[Whitey741]

You can buy a u-joint that makes the switch from the smaller th350 size on the shaft to 400 yoke. I will look for the part # when I have a chance. Dana/Spicer made it. I went from a 4spd muncie to a T-10 using one and never had a problem. Not a race application though.

[RockStan]

gm did make a 375 it was a cross between a 350 and a 400 if you could find a output shaft and tail housing for one it would b an easy crossover and could use same driveshaft as 350 maybe shorten it up though