Visit The Dirt Forum for More Information

Author Topic:   Drive shaft angle grt car
bigbob
Dirt Newbie

Total posts: 3
posted June 29, 2005 10:17 AM  
With motor mounted all the way to the right and 19 1/4 inch j bar, there seems to be a pretty dramatic angle in drive shaft from the rear end to the input on the tranny. Is this normal and if so why? Shouldn't the drive shaft be fairly straight horizontally?

GO 24
Dirt Freak

Total posts: 366
posted June 30, 2005 09:36 AM  
5 degree pinion angle is a good baseline when the car is at ride heights. I can't see how the J bar or motor set back would affect it one way or the other.

bigbob
Dirt Newbie

Total posts: 3
posted June 30, 2005 10:05 AM  
quote:
Originally posted by GO 24:
5 degree pinion angle is a good baseline when the car is at ride heights. I can't see how the J bar or motor set back would affect it one way or the other.

It effects it left to right, not top to bottem. If up and down is important why isn'r left to right?

GO 24
Dirt Freak

Total posts: 366
posted July 01, 2005 11:54 AM  
Oh I see what ya mean, yeah the driveshaft should basically be pointed straight ahead. A couple things come to mind....
Contact the chassis builder and ask where the reference points are in the chassis, remove the J bar, and then square the rearend back in. Are you sure it has the correct tube lenghts?
If you were to move the rearend in order to have the driveshaft straight would the current j bar too short or too long?
1 last question, how is your J bar currectly set ie....on pinion and frame side?

bigbob
Dirt Newbie

Total posts: 3
posted July 06, 2005 08:27 PM  
discovered a bent pinion plate which caused the j bar mount bolt to run at angle toward right side moving rear end to left. Crazy huh. thanks for the replies.

GO 24
Dirt Freak

Total posts: 366
posted July 07, 2005 11:48 AM  
That'll do it, glad ya found it!!

Back to the Archives