Pinion angle

Author Topic: Pinion angle  (Read 1105 times)

Offline 74chall

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Pinion angle
« on: March 15, 2005 - 08:28:14 AM »
I have -5 degrees on the drive shaft and + 8 on the pinion.
What size shim should i go with? THANKS!!!!   :thumbs:




Offline 98hd

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Re: Pinion angle
« Reply #1 on: March 15, 2005 - 08:45:01 AM »
I have -5 degrees on the drive shaft and + 8 on the pinion.
What size shim should i go with? THANKS!!!!   :thumbs:

From my experience (nothing with cars BTW) you want the driveshaft and pinion to be inline if running a CV style shaft, and with a traditional 2 u-joint shaft (like on these old mopars) you want the pinion and the output of the transmission to be at the same angle.

So, what I'm saying is take a degree measurement of the transmission (I usually use a flat part on the slip yoke) and correct the pinion to agree to that number.
'72 barracuda....starting the restification!

Offline Chryco Psycho

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Re: Pinion angle
« Reply #2 on: March 15, 2005 - 10:29:48 AM »
Ok so I assume the nose of pinion is below the driveshaft , so you need to be at 5-7* nose down , & you have 13* now so logically you need a 7* shim ...but as you raise the nose the driveshaft angle also imporoves so I would start with a 4* shim & see how much it imporves with that 

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