Determining Best Pinion angle on Front

THE_OWL

NAXJA Forum User

• Aug 18, 2003

• #1

Im getting ready to setup the front driveline with a HP44. No brackets so I can set pinion where I need it.
its a HP44, and about 10" lift.
My T-case will sit about 1-3/16" lower.
How do I determine how far to point the lil pig ?
thanks

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 18, 2003

• #2

Bracketry has nothing to do with it.The fact is you still have to make a compromise between pinion angle and castor!

 

V

vintagespeed

NAXJA Forum User

Location

Upland, CA

• Aug 19, 2003

• #3

Right, castor is going to be your limiting factor. With a HP axle you dont really need to rotate it more over the stock preset pinion angle. At least that's my experience with a 3/4 ton Ferd D44 & about 12" of lift.

The CV can take all the pinion angle you can give it, so if you wanted to cut the ears & rotate the housing to an ideal of around 10-13* max. you'd be way more ambitious than I am.

 

THE_OWL

NAXJA Forum User

• Aug 20, 2003

• #4

Makes sense now that my axle came in today.
Ive decided on perfectly flat

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 20, 2003

• #5

THE_OWL said:

Makes sense now that my axle came in today.
Ive decided on perfectly flat

Click to expand...

Perfectly flat what?????????

 

THE_OWL

NAXJA Forum User

• Aug 20, 2003

• #6

Perfectly the way it comes.
so my steering arms and tie rod are level.

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 20, 2003

• #7

Your not making much sense here!What pinion angle?What castor?They have to equal 9 for the HP as I recall!

 

MaXJohnson

NAXJA Forum User

Location

The Kansas Rockies

• Aug 20, 2003

• #8

RCP Phx said:

They have to equal 9 for the HP as I recall!

Click to expand...

That only counts on high pinion D-30's. Different vehicles have different castor/pinion splits. It would be great if we had a chart listing the common ones.

Hooter dude:
"so my steering arms and tie rod are level"
That's the last thing you want to worry about. Set your axle on jack stands with about 5° or 6° of castor and then check to see if you still have enough pinion angle. If it's way off, you may want to consider spinning your tubes. Judging from the comments of vintagespeed, it may be right on

 

THE_OWL

NAXJA Forum User

• Aug 20, 2003

• #9

Im not smart enough to do that.
Castor Camber isnt my field.
this was a custom made axle sitting under an early bronco
the previous owner did all the work