Pinion angle question

[62stepside longbox]

So I am putting a 12 bolt under my 62, I just got the mounting pads cut off the rear end and I'm just about ready to weld the brackets back on in the correct location but I'm unsure of what to set the pinion angle at since I currently have a two piece driveshaft, but I will likely be switching to a one piece very soon. what I am asking is if a one piece and two piece require different pinion angles? Thanks

[Captainfab]

Did you not check the angle on your original differential? If not then the pinion angle should be the same as the output of the trans, so that both are parallel at ride height.

[62stepside longbox]

Originally Posted by Captainfab

Did you not check the angle on your original differential? If not then the pinion angle should be the same as the output of the trans, so that both are parallel at ride height.

Yes I still have the original eaton ho32 installed, I know the simple solution would be to set the new rear end up on the same angle as the original but what I'm wondering is that if I switch to a one piece driveline (will probably be this winter) do I need a different pinion angle?

[leonphelps]

depends on what the angle is.

two piece shafts are a little more tolerant of the differences. your splitting up the forces on two shafts in stead the forces on the universal joints of one (if that makes sense).

tell us the angle at the trans.

[geezer#99]

Try here for info.
http://www.drivetrain.com/parts_cata..._problems.html

[LVPhotos]

http://www.adamsdriveshaftoffroad.co...rts-tech-info/

Here is a chart from the guys who built my 2-piece shaft. Mine is original short bed 1-piece. I am super low on bags and the x tunnel on frame was too close for comfort.

[siggyfreud]

I think the standard is usually trans points 3* down, and the rear end is 3* up. That said, I think the main goal is to have the two angles zero each other out, so if your trans is, say, 4* down, you'll want to nose the diff 4* up.

[padresag]

Originally Posted by 62stepside longbox

Yes I still have the original eaton ho32 installed, I know the simple solution would be to set the new rear end up on the same angle as the original but what I'm wondering is that if I switch to a one piece driveline (will probably be this winter) do I need a different pinion angle?

the capt already answered the question
ron

[62stepside longbox]

Originally Posted by padresag

the capt already answered the question
ron

He did say what the ideal operating angles for a one piece are (which was very helpful), however my question was asking if a one piece and two piece require different angles

[Captainfab]

I would set the pinion angle the same as on your HO32.

[padresag]

Originally Posted by 62stepside longbox

He did say what the ideal operating angles for a one piece are (which was very helpful), however my question was asking if a one piece and two piece require different angles

doesn't matter what the driveshaft is 1 piece or 2 it is the relationship between the mainshaft of the transmission(which is the same as the crankshaft angle) and it's relationship with the angle of the pinion shaft.
ron

[62stepside longbox]

Originally Posted by padresag

doesn't matter what the driveshaft is 1 piece or 2 it is the relationship between the mainshaft of the transmission(which is the same as the crankshaft angle) and it's relationship with the angle of the pinion shaft.
ron

Ok thanks for the help Ron, I suspected so but just wanted clarification to be sure.

[padresag]

a lot of these things you can google. some sites have good illlustration and specs
ron