View Full Version : Driveline guru's....Got a question.......


Kokamo
Jan 3rd, 09, 09:02 PM
Hey guys, some of you may remember THIS THREAD. (http://www.camaros.net/forums/showthread.php?t=130749) I just need a little more info before I nail it all together.

I think that my pinion angles were to blame. So, this time around, I'm not gonna waste my time and do it right the first time.

Question.........What do you guys think of my driveline angles?

~Engine (http://i198.photobucket.com/albums/aa282/Kokamo44/69%20Rising%20from%20the%20ashes/Engine.jpg)
~Driveshaft (http://i198.photobucket.com/albums/aa282/Kokamo44/69%20Rising%20from%20the%20ashes/Driveshaft.jpg)
~Rear Yoke (http://i198.photobucket.com/albums/aa282/Kokamo44/69%20Rising%20from%20the%20ashes/Rearend.jpg)

The engine looks to be around + 1/2 a degree for a baseline. I tried to get it as close to zero as I could, but this will have to do. The driveshaft looks to be about - 2-1/2 degrees. The rear yoke looks to be about the same as the engine (+ 1/2 degree).

What constitutes as acceptable pinion/driveshaft angles? I would assume this will work alot better than my last setup.

Thanks,

Joe

Vegas69
Jan 3rd, 09, 10:19 PM
I'm not sure you want 0. 3-4 degrees driveline is pretty standard on these cars. Where are you measuring your engine angle? It should be on the u joint cap of the ouput shaft or harmonic balancer. I think the reason that 0 is not optimal is oil return and your intake is milled for a drivetrain angle. Meaning the bowls will be off kilter.

wiskeesour
Jan 3rd, 09, 10:57 PM
Arent all Chevys at 2 degrees and the then the drive shaft is from 2.5 to 4?

Hmmm....I watching this...

Vegas69
Jan 3rd, 09, 11:20 PM
Most first gens are arond 4 degrees.

ls427ss
Jan 4th, 09, 03:32 AM
Maybe this will help...
http://www.prostreetcamaro.com/dshaft.shtml

Kokamo
Jan 4th, 09, 09:28 AM
Larry, that is a good link. I have some reading and studyting to do. THANK YOU!

~Joe

Kokamo
Jul 5th, 09, 08:03 PM
Just an update to this thread........

After putting the trans/driveshaft/axle at every angle combination possible, I still had vibes that simply WOULD NOT go away. The 4.88 gears were a little too much, so I opted for some higher gears (Richmond 3.73).

While I was removing the 4.88 gears, I thought I'd pull the pinion bearing off so I could re-use the shim or throw it in the pile of other ones I had. Well, I get the pinon bearing off and I see that the previous builder had used a shim that was about a half inch too big....therefore the shim was actually off to one side and not centered, thus causing my vibrations.

Installed my Richmond 3.73 gears and viola!!!! NO MORE VIBES!!!

I just wanted to conclude this thread for others that might have a similar problem.

Thanks for everyone's help and ideas.....I never would have thought this would be an issue.

Thanks again,

~Joe