Pro Comp Degree Shim - 99-400B

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  • Pro Comp Suspension | Part Number: EXP99-400B
  • Fitment:Universal Fit
  • Center Pins:Without Center Pins
  • Availability:In Stock
  • Degree:4 Degree


Degree shim is tapered in order to improve vehicle driveshaft angle.

Customer Reviews

4.9 4.9
14 Customer ratings
5.0 Worked great!

Did what they were supposed to. They seem like a good quality product and we use 4 wheel parts regularly.

from Az |
5.0 Leaf spring shims

In stock fast delivery what's more to ask for! 4wp has been killer for shipping and readily available items

from Sedro Woolley W.A |
5.0 Biden sucks

Buy It Dont Ever Need, So Underrated Cant knot slide

from California |
5.0 caster wedges

Perfect to do the job. Easily narrowed to fit my skinny springs on my '33 Chevy



Question & Answers

1 Answered question

Q: Can you use these shims on a 2020 Silverado? Also, the truck originally did not come with a shim. Are the factory bolts long enough to compensate for shim thickness? Answer this question

A: You will need to look at the top of the center pin to see if there is .5-.75 thread sticking out past the nut. If so, the original center pin could be used. If pin is not long enough or if has become stretched, you will need to replace. You will to measure and order the correct diameter center pin.

Answered by Christian from 4WP HQ on 03/01/2021

Q: How wide are these shims? Need 2 inch wide by 4 degree shims for 1973 C J 5 with power steering and a 304. Answer this question

A: Frank, These degree shims are 2.5" wide. Thanks, Don

Answered by Anonymous on 05/18/2014


Pro Comp Suspension has spent the last two-and-a-half decades engineering, testing and manufacturing products that will give Jeep drivers the confidence to dominate whatever terrain is ahead. The Pro Comp Promise Life Time Warranty is forever. Pro Comp's warranty goes with the suspension products on Jeeps whether or not the Jeep owner is the person who originally purchased the product. Pro Comp Suspension can afford to give such a warranty because the products are produced at the Pro Comp facility in San Diego, California under exacting manufacturing standards. Pro Comp Suspension is the only suspension company with products that are tested under true driving conditions on outside roads, rather than simulated testing. Shop Pro Comp Suspension Now


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