Seff

Check my math - did I miss anything?

Trying to calculate my driveshaft length for my TKO swap.

Currently have a Th350. Length is 27 11/16" = 70.3 cm
Driveshaft with 350 is 55½" = 140.9 cm

My TKO with bell is 77.5 cm end-to-end.

So is my DS really just supposed to be 140,9 - (77.5-70.3) = 133.7 cm?

Thanks.

Bonus question: Stock u-joint for a '71 rear is a GM 3RL u-joint, yes?

garys 68&72

Do the actual measurement. There are several sites that show what measurements are required.
Also double check the U joint size.
My reference is a Muncie/T10 and Richmond, but:
In addition, you need to check your yoke length. Make sure it seats in the trans the full length of the output shaft bushing and doesn't bottom out against anything, ie speedo drive gear.

Seff

Fair enough, I'll measure the car.

Seff

Measured. Lo and behold, 133,6 cm. The drive shaft is being made as we speak, and I'm working on the hydraulic clutch.

garys 68&72

Any reason you're going hydraulic over the old mechanical linkage?

Seff

I don't have the mechanical linkage, and my frame doesn't have the bracket.

garys 68&72

Fair enough. I went the mechanical linkage on mine but know several others with hydraulic. And just an fyi, most vendors sell A body kits to convert to manual trans with the Z bar.

Seff

My location limited me somewhat. There was a hydraulic setup for sale over here used on an Skylark which I got at a very reasonable price.

garys 68&72

Is a generic setup? Hydraulic throwout bearing?

Seff

Well, if the one Ram clutches sells is generic, then yes.