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Old 08-04-2009, 09:05 PM   #1
Oilbrnr
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Re: CV Driveshaft question

Is your rear diff yoke pointed almost straight towards the TC?

-2* is about ideal so the grease gets worked around the u-joints. If it is way negative you could be inducing vibration.

This is a spring lift, not a shackle flip right?
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Old 08-04-2009, 10:58 PM   #2
Critter
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Re: CV Driveshaft question

Quote:
Originally Posted by Oilbrnr View Post
Is your rear diff yoke pointed almost straight towards the TC?

-2* is about ideal so the grease gets worked around the u-joints. If it is way negative you could be inducing vibration.

This is a spring lift, not a shackle flip right?
It is pointed slightly up, but not straight at the TC. It has new 6" lift springs (no shackle flip) and currently I have the original 12 Bolt in place with some 2* shims and thing seem to be OK. It might have had a little vibration to it, but very minimal. I have the blazer torn apart for a rebuild and will be going back with a 14 bolt. I figured now would be the time to do everything correct. So, starting with a "blank canvas" should I pay the cash and get a custom CV drive shaft built, or just incorporate the correct driveline angle into the pinion when I weld on the new spring perches??? I would rather spend the time and money now and do it right rather than later after everything is painted up and pretty. THANKS!
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Old 08-05-2009, 10:25 AM   #3
Burt4x4
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Re: CV Driveshaft question



Her is mine, 1350CV with Flange mount to the TC, so 4 bolts and the driveline drops off the TC.
ANYWAY.. I like the CV cuz you can point the diff straight at the TC for better pinnion trail clearance, true too much pinnion angle will cause lubrication issues so if you drive the Hwy speeds caution is needed. On the trail not somuch a concern. I ended up about 2* south of straight at the TCase for pre-axelwrap comming from my 454
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