Hydro-Boost Seal Leak Repair Kit Fits for Ford GM Chrysler Chevrolet F-150 F-250 F-350 G30 S10 Bronco Expedition Rubber Universal Replace 2771004x 2771004

Did exactly what it needed to do

I have a JD6 model hydroboost this kit does not come with proper sized o-rings to replace everything and the check valve failed after only driving 50km leaving me stranded on the side of the road and getting the truck towed home I recommend buying a new hydroboost instead of this kit

Ordered two sets, Items came quick but no step by step instructions as listed.

I only needed to source an o-ring for an external plastic piece held in by a spring clip for my 1997 Mustang Cobra. Replacing the entire booster was not an option due to its rarity. So I rebuilt it with this kit and all is well.

No check valve no seat for it very dissapointed.