Lift problems

[Pete M]

what is it that you're calling a "diff angle"?

[JACKED88]

what is it that you're calling a "diff angle"?

Sorry, shoulda called it tha pinion or drive line angle. The angle needed to keep tha drive shaft from being in such a bind. Right now my pinion is pointed down about 3* instead of a few degrees up like it aughta be.

[CWLONGSHOT]

Put the caster at the suggested settings and your pinion angles will be adequate.

 

Don't put the cart before the horse here, stop over thinking this.

 

Set your caster, off the ball joint as shown and you will be OK.

 

CW

[JACKED88]

Put the caster at the suggested settings and your pinion angles will be adequate.

 

Don't put the cart before the horse here, stop over thinking this.

 

Set your caster, off the ball joint as shown and you will be OK.

 

CW

Guilty as charged for over thinking everything. I'll do whats needed as far as adjusting the arms to around 7* as suggested and then do the alignment.

 

Just one more thing thats still bothering me. Thats tha fact that my upper and lower arms are gonna be damn near if not exactly tha same length. Does it matter or is that something else I'm over thinking and need to quit worrying about???

 

I know I seem a little hard headed sometimes but I'm tired of half @$$ ------ rigged sh-t and just want everything right. I really appreciate yalls help. (and patients too)

 

Thanks guys.

[mvusse]

Going from memory here, but pretty sure about this:

 

Stock caster angle is 6.5 degrees, stock pinion angle is 2.5 degrees. When I lifted my truck 6.5" I attempted to find a happy median between pinion angle and caster (I have adjustable upper and lower arms also). I had the pinion angle at about 5 degrees, and caster was 4 degrees. No vibes, but she wanted to wander like crazy on the freeway. After a couple thousand miles like that and a 100 mile almost suicide trip without a sway bar I set forget it, set the pinion back at the stock 2.5 degrees which put caster back at 6.5 degrees. Rides nice and straight again, and disconnecting the sway bar doesn't cause any trouble either.

[JACKED88]

OK, so a 6.5* caster angle should give me a 2.5* pinion angle. A 7-8* caster angle would give me up to a 4* pinion angle. I'm goin with 7* on tha caster in which should give me a 3* pinion angle. Perfect. :thumbsup:

 

Thanks again for all yalls help. I'll let ya know how it turns out.

 

Something tells me that new computerized alignment machine is gonna go nuts when it starts reading this thing. :rotf:

[mvusse]

Yes, a 6.5 degree caster angle will give you a 2.5 degree pinion angle.

 

No a 7 to 8 degree caster angle will give you a 1 to 2 degree pinion angle.

 

To get a 3 degree pinion angle you need a 6 degree caster angle.

[JACKED88]

Yes, a 6.5 degree caster angle will give you a 2.5 degree pinion angle.

 

No a 7 to 8 degree caster angle will give you a 1 to 2 degree pinion angle.

 

To get a 3 degree pinion angle you need a 6 degree caster angle.

:doh: Your right. Somehow my math got turned all @$$ backwards. :dunce: I woulda caught my mistake but thanks for being on your game and correcting me. :thumbsup:

I'll go with tha 6.5 and 2.5 angles.

[pig]

Hi,

 

Today i built my own controlarms for my 6,5" lift following the same lenghtchart that you did, i also find the upper controlarms about 1" to short. How did it end up for you?