Mad beyond all comprehension

[protrash64]

It should be similar to the output shaft on the trans. I say similar because I have seen it written as 'the same as the trans' while others have described the angle as being slightly less(down) because the pinion 'climbs' the ring and causes twist under acceleration and load, therefore adding in the extra degree or so needed to be 'the same'.

Hope this helps, some anyway.

[Captainfab]

I can get that angle for you tomorrow Zack.

[CVA59]

Originally Posted by Captainfab

I can get that angle for you tomorrow Zack.

Thanks Fab.
Zack

[Captainfab]

OK here's what I came up with. With the trailing arm mounts level, the pinion is up 14 degrees.

[chevy_mike]

Originally Posted by protrash64

It should be similar to the output shaft on the trans. I say similar because I have seen it written as 'the same as the trans' while others have described the angle as being slightly less(down) because the pinion 'climbs' the ring and causes twist under acceleration and load, therefore adding in the extra degree or so needed to be 'the same'.

Hope this helps, some anyway.

That's actully more true with leaf spring rears since the spring will wrap up under acceleration. With trailing arms, you don't get the pinion rotation as the axle is hard mounted to the trailing arms and cannot rotate. This is one reason trailing arms setups hook so well and handle so good (it's what NASCAR uses still). You don't get the loading/unloading as you play with the gas pedal.