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Author Topic: pinion angle  (Read 32438 times)

Offline SBC384

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pinion angle
« on: March 16, 2008, 08:17:34 pm »
HEY AFTER I INSTALLED THE REAR DROP MY PINION ANGLE IS NOW POINTED UP A LITTLE WHILE SITTING  ?S THE PROBLEM OR CORRECTION METHOD?  ???
THANKS
« Last Edit: March 24, 2008, 03:44:44 pm by Captkaos »
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Offline 77c15

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Re: pinion angle
« Reply #1 on: March 17, 2008, 10:40:52 am »
I am wondering the same: I used the drop shackles/hangers and got a 4 inch drop in the rear. Can I use the same wedges they sell at 4x4 shops? The pinion correction blocks?
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Offline Captkaos

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Re: pinion angle
« Reply #2 on: March 17, 2008, 11:53:12 am »
Yes the same shims are used.  You want about 3.5 -4 degrees on the pinion.
Generally you see this when using shackels/hangers.
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Offline SBC384

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Re: pinion angle
« Reply #3 on: March 17, 2008, 09:09:36 pm »
3.5-4" DOWN I ASUME...
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Offline SBC384

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Re: pinion angle
« Reply #4 on: March 17, 2008, 09:11:00 pm »
O YEA,SHOUL THE DROP SPINDALS MESS THE AIGHNMENT UP ? MINE IS...
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Offline Captkaos

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Re: pinion angle
« Reply #5 on: March 17, 2008, 09:24:41 pm »
Yes, you need an alignment after any suspension changes. 

BTW turn your caps lock off.
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Offline SBC384

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Re: pinion angle
« Reply #6 on: March 17, 2008, 09:32:01 pm »
i have 2 degree angle shims and its still up slightl should i put 2 more ?
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Offline Captkaos

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Re: pinion angle
« Reply #7 on: March 17, 2008, 09:44:40 pm »
If you are guessing, you are not going about this correctly.  You need to put an angle finder on there and get the measurement.  I haven't ever had to use more than 1 shim. 

BTW, the yoke should point up...
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Offline SBC384

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Re: pinion angle
« Reply #8 on: March 18, 2008, 04:29:29 pm »
the angle at the back on top of dshaft should be the same as the angle at the bttm of the dshaft at the front , right ?

also thought the angle shoulb be slightly down on rear end yoke due to the rear end turning upwards during acceleration?
thanks for the help...

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Offline Captkaos

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Re: pinion angle
« Reply #9 on: March 18, 2008, 04:58:51 pm »
The engine trans should point down about 4 degrees and the pinion should point up 4 degrees.

You actually get more bite running the pinion lower on the track but it will kill the u-joints.  The point this way to keep the u-joints in phase.
« Last Edit: March 19, 2008, 01:33:00 pm by Captkaos »
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Offline HAULIN IT

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Re: pinion angle
« Reply #10 on: March 18, 2008, 06:54:47 pm »
Chris, You should have a PM. If you don't please let me know. Lorne
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Offline SBC384

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Re: pinion angle
« Reply #11 on: March 18, 2008, 09:08:46 pm »
PM ? sorry not sure ? u mean
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Offline Captkaos

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Re: pinion angle
« Reply #12 on: March 19, 2008, 01:32:10 pm »
I got it, that was a typo.  It should have said lower not higher..  I corrected it..

PM = Private Message...
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Offline VileZambonie

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Re: pinion angle
« Reply #13 on: March 19, 2008, 06:20:59 pm »
The pinion angle is the difference in the angles between the rearends pinion yoke to the angle of the
trans/transfercase output shaft. the driveshaft is the straight line that connects the dots. Your pinion angle is going to change anytime you change anything regarding the rear suspension or trans mount.

Get a protractor and measure your angles before you start shimming things. If you post your results here we can help get you set up. you're going to want a negative pinion angle.
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Offline SBC384

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Re: pinion angle
« Reply #14 on: March 19, 2008, 08:38:48 pm »
Lorne no PM.... I HAVE AN ANGLE FINDER WILL TRY IT TOMORROW.. OH YEA AFTER I LOWERED IT THE DRIVE SHAFT WONT GO BACK IN ABOUT 1/4 TO 1/2 " TO LONG
THANKS FOR EVERYONES HELP KEEP IT COMING €!!!!!
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