When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I took the picture below in an attempt to show it, it's not centered and I'm guessing that it being winter and all that at least one of you has his car up in the air and can tell me if that's just the way they are or if mine has something strange going on.
Now my car is far from stock, and I know that the engine/trans is offset to the right from the factory as is the differential housing. As you can see I've got a CV driveshaft in there because it had a noise that sounded like a u-joint angle not right kind of noise which this driveshaft solved.
I know that the engine is centered on it's mounts and so is the transmission but my lying eyes are telling me that the driveshaft is not square to the tunnel. The differential also looks square so it's a little mystifying to see the driveshaft sitting crooked in there. If it isn't centered it would explain the noise I was hearing with the original driveshaft even when the angles were perfect.
If it works don't worry about it. Mine is angled due to my Dana 60 IRS that has a different pinion offset than 'Vette IRS.
I could have moved it over but wanted identical halfshafts...so u-joints just have to do their job. They've been doing fine on the street and track up past 200 MPH!
If it works don't worry about it. Mine is angled due to my Dana 60 IRS that has a different pinion offset than 'Vette IRS.
I could have moved it over but wanted identical halfshafts...so u-joints just have to do their job. They've been doing fine on the street and track up past 200 MPH!
JIM
U-joint angles are an interesting subject!
This page from the factory service manual for example shows the GM apparently has no problem with the equal and opposed angles:
This is how the angles on mine were set before I put the CV driveshaft in and it was silky smooth, smoother than the CV driveshaft. On my car it wouldn't be possible to adjust the pinion high enough to do equal and opposite.
Odds of me finding the post are about zero but somewhere I read about limiting all the angles to less than a degree which I thought was absolutely NUTS and impossible. Stating that the drive line was not intended to be more than a degree off for any extended amount of time.
The engines in the C3's are offset 1-1/2" to the right to allow for the wider big blocks to be used and that skews the driveshaft. No problem as the G.M. engineers accounted for it in the placement of the transmission mount holes in the cross member and position of the rear end yoke.
The engines in the C3's are offset 1-1/2" to the right to allow for the wider big blocks to be used and that skews the driveshaft. No problem as the G.M. engineers accounted for it in the placement of the transmission mount holes in the cross member and position of the rear end yoke.
Just look at the hold down stud in the center of the air cleaner. It's not even close to the center of the car.
Odds of me finding the post are about zero but somewhere I read about limiting all the angles to less than a degree which I thought was absolutely NUTS and impossible. Stating that the drive line was not intended to be more than a degree off for any extended amount of time.
Anyone else hear of this?
Front and rear u joints need to be within a DEGREE OF EACH OTHER. So if the front is at three degrees, the rear can be between 2 and 4 degrees. A mismatch in angles caused vibration. Had that problem when I put a lift kit on my old wrangler. I adjusted the pinion angle up thinking less angle was better. Always shuddered on takeoff till I increased the pinion angle to match the angle at the transfer case.
Hi,
I believe John Z has written about the engine being off-set to match the position of the pinion/differential which was located to allow the half shafts to be of equal length.
A side benefit was that the driver gained 1"+ extra foot room.
Regards,
Alan
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
Driveshaft not centered in tunnel
Just look at the hold down stud in the center of the air cleaner. It's not even close to the center of the car.
