Driveshaft length problem?
Driveshaft length problem? I recently purchased a new driveshaft for my th-400 chromemoly driveshaft,I think its too long I slide the yoke entirely in tranny and after muscleing it into the rear.I have 3/16" play in the yoke I would think i need at least 1/2" to 3/4" to work.Also took for ride and get a vibriation that wasnt there with the old shaft.I bought this used it is a mark williams driveshaft 3".I can't bring the rear any further back either its as far as I can get it.
Lift the car and put the jackstands under the axle, so the rear suspension is at approx ride height. Insert the yoke all the way into the trans. The U-joint should be approx .75-1" from the rear yoke
Too little play and you risk a bind which kills transmissions and turns the DS into a bad thing. Too much and the yoke doesnt have enough coverage to remain perfectly strait on the output shaft
Too little play and you risk a bind which kills transmissions and turns the DS into a bad thing. Too much and the yoke doesnt have enough coverage to remain perfectly strait on the output shaft
Shoot the shop that built it an email with your problem. If they tell you to stick it, then take it to a local DS shop and have it shortened. The only measure they need to know is the distance from the tip of the output shaft to the CL of the U-joint yoke on the rear. Shortening is inexpensive
Sucks man. Good call on getting it shortened. Mine had about the same amount of play after my rear end install, until I hit an intense bump and the DS busted the seal on the tranny. No severe damage, but I know it could've been worse.
