Topic: Pinion Angle

[Yogatoy]

Can Anyone help me. I just bought the 5" lift and I need to know how to set up the pinion angle for the rear axle. what angle Do I set it at and Do i have to wait to set the pinion angle after I get the body back on the frame or can I set it with Just the frame. Please help. My truck is a 84, extra cab

[DTB]

u want the pinion to be pointed directly at the transfer case taking into account the springs settling. U dont need the body on the frame. I am assuming you are cutting off and welding on new perches

[DTB]

best way to do this is loosely mount the axle under the springs....(ubolts finger tight) with the perches sitting on top jack it up.  Use another jack to jack the front of the pinion up to desired angle

[*ROKTOY*]

If I were you I would mock it up, as I have the 5" springs on mine and did not have to change my angle at all.

[DTB]

i have the 4 inch springs and moved my pinion up a good couple inches by rewelding the perches

[BigMike]

u want the pinion to be pointed directly at the transfer case taking into account the springs settling.

Is it not best to have the pinion pointing just slightly below the center line of the t/case output flange? That way under compression/axle wrap, it doesn't go too far beyond the centerline.

[DTB]

Is it not best to have the pinion pointing just slightly below the center line of the t/case output flange? That way under compression/axle wrap, it doesn't go too far beyond the centerline.

i dont know..are you asking me? can the suspension compress that far that the pinion would be above the output flange?

[BigMike]

can the suspension compress that far that the pinion would be above the output flange?

Of course. I mean, it's all being stupidly technical, the truck will still perform all the same, but if you have the option to alter the angle, then we always recommend to point the pinion just slightly below the center line of the t/case output shaft.

[DCabTaco]

I've read that too, unless you have a traction bar.

[DTB]

Of course. I mean, it's all being stupidly technical, the truck will still perform all the same, but if you have the option to alter the angle, then we always recommend to point the pinion just slightly below the center line of the t/case output shaft.

thanks mike i didnt know that