The Allstar Performance ALL99401 is a medium polyurethane bushing insert designed to fit the ALL56248 GM trailing arm bushing. Rated at 60 durometer, it sits between the 50 durometer soft insert (ALL99400) and the 80 durometer hard insert (ALL99402) and is sold each. Swapping inserts in the ALL56248 bushing housing changes the durometer without replacing the outer bushing.
Allstar Performance Spec Sheet (PDF)
Compatibility
Fits Allstar Performance ALL56248 GM trailing arm bushing housings.
FAQ
What durometer is the ALL99401 bushing insert?
The ALL99401 is rated at 60 durometer, a medium hardness between the 50DR soft and 80DR hard insert options Allstar Performance offers for the ALL56248 trailing arm bushing.
What material is the ALL99401 insert made from?
The ALL99401 insert is molded from polyurethane.
What does the ALL99401 insert fit?
The ALL99401 insert is designed to fit inside the Allstar Performance ALL56248 GM trailing arm bushing housing.
How many inserts come in one ALL99401 package?
The ALL99401 is sold each, as a single replacement insert.
What is the difference between the 50DR, 60DR, and 80DR inserts?
The durometer rating indicates hardness. The ALL99400 (50DR) is the softest, the ALL99401 (60DR) is medium, and the ALL99402 (80DR) is the hardest of the three interchangeable inserts for the ALL56248 bushing.
