A-Team Performance - Universal GM 3 Piece repairs Hydro-Boost Rebuild Seal Kit 2771004 Seal Leak Repair Kit - Compatible with Ford, GM, Dodge, and Chrysler Applications

This appeared to be a decent quality seal kit. However, my Hydro boost continued to leak and needed to be replaced.

This seal is garbage! The rubber is way too soft, and the seal lip will flip over and tear. This is the second one from Amazon I've purchased, and both had the same issues. I purchased a USA made seal from another vendor for almost twice the price, and it worked flawlessly. The *only* good thing about this seal, is that it taught me how to remove and replace my hydroboost and seals with greater efficiency.

Just what I needed

Not sure didnt install yet.

Resealed brake power booster on my 06 Duramax. No more leaks.

I am of the opinion that the seals that came in my kit are a cheap knock offs of the original seal design. I'm referring to the power piston seal (that commonly leaks). My current repair of an 04 Silverado 2500hd, replacement seal leaked worse that the 17 year old seal that was removed did prior to replacement. Upon further inspection a quality seal that is made to actually seal the power steering fluid in the cylinder and power piston chamber needs will have an extension garter spring to compress the seal around the power piston to keep the fluid from bypassing the edges of the seal. Both seals provided in the kit, both small and large, seals lack the internal spring, evidenced by being able to ''finger roll'' the seals and feel the absence of the firm feel of the internal spring.For all the effort and grief this job is, find a better quality seal because you don't want to do this job twice or unnesessarily have to pay out hundreds for a rebuilt unit because of a $12 seal. Look for a brake and clutch rebuilder that can steer you in the right direction to source the good parts. Just my humble opinion. Good luck!

The first one i put in, i kept the front half in the truck, it ended up tearing the seal during install cause its a pretty soft rubber...For round 2 i took it all the way off and back guided the seal around the shaft through the master cylinder side. Do it this way if you dont want to waste your time and money.

This works so well for my GMC had no problems putting it in save me a couple hundred dollars.