Reverse Shackle Kit & Caster/Pinion Angle

77SSII

Member
Hey all,
I have a conventional lifting shackle up front and had to use 7 degree shims to get me to 0 /+1 degrees of caster. My pinion angle is now a joke.
My question is, if a reverse shackle is used does it keep the "stock" caster / pinion angles somewhat the same as before the reverse shackle kit was installed?

Not sure if I have this right in my mind but the kit looks like it might have the same distances (spring eyes to frame) for both the front fangs and rear shackles to keep the axle from rotating much once installed????
If there is a change in caster/pinion angles is it less than a conventional shackle lift? That way can you get away w/shims and a c.v. Front drive shaft instead of doing a cut-n-turn? Jeff says you will need a longer front drive shaft w/the reverse shackle kit anyway.
 
It will be close to the same. If you have skills to weld, I would suggest you do a cut and turn of the knuckles once you get your pinion angle where you want it. All the bandaid crap folks do will not replace a good cut and turn, and reverse shackle.

You can also get offset ujoints, they will help with alleviating binding of the ujoints.
 
Thanks, appreciate that!
What do you recommend as a good caster angle? I use the truck a lot on the highway. I am running a set of new 33" goodyear mtrs.
I haven't seen any pix of a truck w/a steering stabilizer, what are your thoughts on those?
Thanks again.
 
Along the same lines, I'd like some advice about altering the spring pads to achieve the "right" pinion angle.
Assuming a SUA, reverse shackle arrangement, relocating the driver's side spring pad is no biggie. But what to do on the driver's side? That's a lot of grinding with a disc grinder, and not the most precise. Is that how you all do it? Does anyone have pics of the process? An angle wedge isn't used here, right?
Its getting to be time for me to consider this mod, so I appreciate people taking the time to offer up advice/past experience. Thanks guys.
 
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