labrat Posted March 8, 2001 Share Posted March 8, 2001 thanks guys, appreciate the input Quote Link to comment Share on other sites More sharing options...
pparaska Posted March 8, 2001 Share Posted March 8, 2001 I think JTR recommends 3/4" - remember, the diff is bolted down, so it doesn't need to slide much - only the engine/trans and the diff moving in flexible mounts will cause relative movement and the need for play. I used 3/4" which is plenty. You want to not use too much since any extra length from the tail housing (actually the bushing) to the u-joint exaggerates the play in the tail shaft and causes the u-joint to run in larger and larger circles, causing eccentric driveshaft rotation and vibration. ------------------ Pete Paraska - 73 540Z - Marathon Z Project pparaska@home.com Pete's V8 Datsun 240Z Pages Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted March 9, 2001 Share Posted March 9, 2001 I spoke with Ron Tyler a while back and took a ride in his T56/LT1-240Z. He recommended about a half inch to reduce vibration. Trust me, his Z is SMOOTH! His is one of the main reasons I'm building one myself. I said to myself "I-gotta-get-one-a-these!! Seriously, I'm sure he said a half inch, but you might want to check with him also- No disrespect intended to those who have expressed a different amount- Heck, listening to most of these guys, I feel like the village idiot!! Good luck, Larry Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted March 9, 2001 Share Posted March 9, 2001 quote: Originally posted by oldzdog: ....the village idiot! Larry Okay, now you're getting personal; Lets leave my family out of this! Kevin, (Yes,Still a lowly Inliner) Quote Link to comment Share on other sites More sharing options...
labrat Posted March 9, 2001 Author Share Posted March 9, 2001 When getting a driveshaft fabricated, how much slack should i leave in the splines on the tranny end when I measure the length from u-joint to u-joint? I don't think it should go flush, or is that just for vehicles with solid rear axles? Thanks... Quote Link to comment Share on other sites More sharing options...
Ray Posted March 9, 2001 Share Posted March 9, 2001 When I did the 14bolt in my blazer I left it out about an inch and a half, but this is with a long yoke, with a normal yoke they say one inch is ok.. if you get out to far you will have a vibration problem... ------------------ Remember it is only a piece of metal. Quote Link to comment Share on other sites More sharing options...
John Scott Posted March 9, 2001 Share Posted March 9, 2001 Push slip yoke in all the way then subtract 3/4 to 1 inch. Most movement from the driveline is away from the transmission. JS [This message has been edited by John Scott (edited March 08, 2001).] Quote Link to comment Share on other sites More sharing options...
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