Author Topic: Proper driveline angle?  (Read 978 times)

0 Members and 1 Guest are viewing this topic.

Wheezer

  • Guest
Proper driveline angle?
« on: January 02, 2013, 06:11:47 PM »
I have a '95 YJ with a SYE kit installed and JE Reel double cardan drive shaft. I think that the guys who set up my axle (re-positioned my spring perches) got the driveline angle wrong... There is zero angle between the shaft and the diff housing. Shouldn't there a smidgen of down angle, maybe 2 degrees or so? A friend says that with zero angle the axle will twist into the positive angle (high versus low) under load, which is bad bad bad. Any advice?
Thanks!

Wheezer

Offline sharpxmen

  • Chief Squirrel BlowerŪ
  • Member
  • *
  • Posts: 7093
Re: Proper driveline angle?
« Reply #1 on: January 02, 2013, 07:07:09 PM »
ideally should be the way you have it set (in-line) but like you say a bit under is probably safer but i don't think it's a big issue unless you have excessive axle wrap (like an SOA with stock leafs which are very soft). My opinion, Art or Bounty are more versed with this so maybe they'll chime in with some pointers.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline Bounty Hunter

  • Member
  • Posts: 1658
    • http://www.sija.org
Re: Proper driveline angle?
« Reply #2 on: January 03, 2013, 12:12:42 AM »
 You should be fine as long as you have no vibes on the highway.

You would have to have tons of axlewrap on the trail for it to be an issue.

Offline neale_rs

  • Member
  • Posts: 3583
Re: Proper driveline angle?
« Reply #3 on: January 03, 2013, 08:43:43 AM »
My SUA YJ has the pinion 3 degrees up, not ideal but it seems to be fine both on and off road.  If you are SUA, it will work fine.
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch