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Author Topic:   Pinnion Angle
65_302
Gearhead

Posts: 265
From: Bixby, OK
Registered: Jul 2001

posted 05-25-2002 01:53 AM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
Just added slide-a-links to my sons car. Need to know if we could have accidently changed the pinion angle by doing this; because it looks kind of straight to me. How is the best way to see if you have the correct pinion angle? As always, will appreciate any help. Thanks.

[This message has been edited by 65_302 (edited 05-25-2002).]

[This message has been edited by 65_302 (edited 05-25-2002).]

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V8 Thumper
Gearhead

Posts: 4681
From: Phoenix, Arizona
Registered: Dec 2001

posted 05-25-2002 04:54 AM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
A magnetic protractor ('angle finder'), or even just a carpenter's square with a torpedo level will do. First, determine the driveshaft angle with your prefered aparatus. Drop the driveshaft out and get a reading off of the pinion yoke, then do the math (subtract the difference) to find your pinion angle. The car must be level and supported by the suspension; put the jackstands under the lower control arms and rear axle housing, to simulate the car's weight distribution while on the ground.

How do you like those CE bars so far? I've got a set, but my car is still under construction

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65_302
Gearhead

Posts: 265
From: Bixby, OK
Registered: Jul 2001

posted 05-25-2002 12:45 PM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
Don't know yet, but are going to find out today. Just hope we did not mess up the pinion angle. The bars were not exactly a "bolt on" for the coupe. The axle housing diameter was too large for the provided U bolts. Had to reuse the old ones and drill out the holes in the mounting plate to get them to fit. Had to cut about one inch off one of the spring leafs. Had to adjust the front spring mounting bracket with the trusty BMFH. Other than that, it was an easy weekend bolt-on. BTW, you will need some big sockets and/or wrenches. Going to test it now. L8r.

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65_302
Gearhead

Posts: 265
From: Bixby, OK
Registered: Jul 2001

posted 05-25-2002 03:06 PM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
Works fine. With the spool and the bars, its a lot less streetable. You can adjust the bars for street (no pre-load), but it only helps a little. Did not seem to hurt the pinion angle at all.

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V8 Thumper
Gearhead

Posts: 4681
From: Phoenix, Arizona
Registered: Dec 2001

posted 05-25-2002 03:26 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote

Unless you added (or subtracted) degree shims under the spring pads, I can't see the bars altering the pinion angle much (with preload), or any angle change at all without preload.

Your u-bolts out of the box wouldn't work? Hmmmmm... I've mocked up my set, and all of the hardware is compatible. I've got a 9", that could have something to do with it...

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65_302
Gearhead

Posts: 265
From: Bixby, OK
Registered: Jul 2001

posted 05-25-2002 08:44 PM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
All the parts in the box work together great. Its how they fit your axle that is the problem.

Anyway...........try to slip the U bolts over the axle before you start. That will give you an idea if its an easy bolt on. If they don't fit, I would take one of the old U bolts off and match it to the new mounting pads by enlarging the existing holes. That mounting plate is some tough metal. The best way to enlarge the holes is with the appropriate size drill bit and a drill press. We had to grind it out. That took a long time to do.

They are on and seem to work fine.

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V8 Thumper
Gearhead

Posts: 4681
From: Phoenix, Arizona
Registered: Dec 2001

posted 05-25-2002 08:56 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by 65_302:
Anyway...........try to slip the U bolts over the axle before you start. That will give you an idea if its an easy bolt on.

BTDT, everything is ok. Holy toledo, how big are your axle tubes? Mine are 3" straight tubes (no taper), it just so happens that the CE u-bolts are identical. Which kit # did you order... I wonder if you got some misplaced components, because all the stuff I've got will bolt in direct.

I guess it dosen't matter one bit; you got them installed and they plant the tires... mission accomplished

[This message has been edited by V8 Thumper (edited 05-25-2002).]

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65_302
Gearhead

Posts: 265
From: Bixby, OK
Registered: Jul 2001

posted 05-25-2002 09:43 PM     Click Here to See the Profile for 65_302   Click Here to Email 65_302     Edit/Delete Message   Reply w/Quote
I didn't measure the axle housing, just know the U bolts did not match the housing. Like you said, its all good now because they are on and seem to work. We will know for sure after our next trip to the track in 2 wks.

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