3580-30 – Center Support Bearing – Gm Application – 1.574″ ID – 2.118″ Center Bearing To Base

3580-30 -- GM Two-Piece Driveshaft Center Hanger Bearing

The 3580-30 addresses a specific GM application where the center bearing hanger height measures 2.118" from the bracket base to the bearing centerline. This dimension is unique among the 3580 series and is not interchangeable with the more common 2.250" variants. Using the wrong height shifts the driveshaft operating angle and creates a discernible vibration at cruise speed.

GM two-piece driveshaft center support bearing failures often present as a rhythmic clunk during acceleration and deceleration transitions, caused by the worn bearing allowing the stub shaft to move axially within the housing. By the time audible clunking begins, the stub shaft journal has typically developed a wear groove that requires shaft replacement as well.

Bore ID is 1.574" (40 mm). The rubber isolator uses a bonded design -- the rubber is vulcanized directly to the steel inner and outer brackets, so there is no separate isolator to displace during installation. GM OEM cross-references include 22800834 and 15769393 depending on application year and body style.