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  Strong vibration under car at 1/8 mile.

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Author Topic:   Strong vibration under car at 1/8 mile.
70coupe
Gearhead

Posts: 382
From: Toronto,Ontario,Canada
Registered: Aug 2000

posted 04-28-2003 10:03 PM     Click Here to See the Profile for 70coupe     Edit/Delete Message   Reply w/Quote
I noticed a strong vibration at the 1/8 mile mark and had to let off the gas in the third round of elims. Good thing I let off! When I got to the trailer I notice the u-joint was letting go. Its a spicer solid and I figured it should of held up better than that. But, after it was removed and I talked with my driveline guy he asked if I had the right u-joint in the rear? It was the u-joint that was installed when I put my new 3rd member in. After close investigation it ended up being .06" smaller than the one that should have been in there. I have put a good 40 passes on the car since this was put in! Anyways, to make this long story shorter, always check to make sure the right u-joint is installed when changing rear ends. The new spicer u-joint is 5-792X with 1.06 caps and 1.125 caps.

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351c 4v clsd heads
60'1.619
1/8 [email protected]
1/4 [email protected]

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Ryan Wilke
Gearhead

Posts: 1700
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 04-29-2003 08:39 AM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by 70coupe:
...always check to make sure the right u-joint is installed when changing rear ends.

...Good advice!
Glad nothing came apart on ya!

Ryan

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