manual driveshaft modification
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Joined: May 2005
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From: Lincolnton NC
manual driveshaft modification
As I continue "getting ready" to swap my automatic out of the 81 vette to replace w/a Muncie 4speed, I've came across this problem. I think I know the answer but...
The Manual driveshaft is about 1/8 to 1/4" longer than the Automatic driveshaft. The Muncie w/bellhousing is 3/4" longer than the Automatic THC 350. The currently installed automatic has about 1 1/2" to 2" of play in the yoke that slides in and out of the trans.rear. I'm hoping to have the same amount of play in the manual set-up.
I believe my measurements are "close" if not exact.
How much do I cut out of my Manual driveshaft that I had balanced & new Spicers installed 2 days ago?
Anyone thats made this swap in a 1981 should know...unless they had someone else to do the work.
My guess is 1", whats yours?
thanks in advance, jim
The Manual driveshaft is about 1/8 to 1/4" longer than the Automatic driveshaft. The Muncie w/bellhousing is 3/4" longer than the Automatic THC 350. The currently installed automatic has about 1 1/2" to 2" of play in the yoke that slides in and out of the trans.rear. I'm hoping to have the same amount of play in the manual set-up.
I believe my measurements are "close" if not exact.
How much do I cut out of my Manual driveshaft that I had balanced & new Spicers installed 2 days ago?
Anyone thats made this swap in a 1981 should know...unless they had someone else to do the work.
My guess is 1", whats yours?
thanks in advance, jim
Yes, I got your email and really appreciate your good advice. I will wait and see if any cutting will be necessary. Thanks a bunch. 
jim
Drifting
Joined: Feb 2002
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From: Manchester, Dead Center in the Middle of TN 25 miles to Jack Daniels,10 miles to Geo Dickle, and .8 mile from the Liquor Store at I-24 Exit 114
St. Jude Donor '05
Anyone want an aluminum drive shaft cut to fit a C-3 from a C-4 '86?
$60 plus the ride? jim
$60 plus the ride? jim
Thread Starter
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Joined: May 2005
Posts: 99
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From: Lincolnton NC
ken80
"using the auto shaft with a combo u joint at the trans yoke."
The manual Driveshaft I have has a larger Ujoint on the transmission end which the Automatic doesn't. Whats a combo U joint? the c-clips or girdles? just curious about possible options. good luck & thanks, jim
Prosouth: whats the overall length and diameter of that shaft?
The manual Driveshaft I have has a larger Ujoint on the transmission end which the Automatic doesn't. Whats a combo U joint? the c-clips or girdles? just curious about possible options. good luck & thanks, jim
Prosouth: whats the overall length and diameter of that shaft?
