9980-10 – 10 – Center Support Bearing – 1.181″ ID – 3.250″ Center Bearing To Base

The 9980-10 combines a 30 mm (1.181") bore with a tall 3.250" center-to-base height -- an unusual combination that serves applications where the crossmember sits very high above the driveshaft centerline. This geometry requires a long drop bracket to reach the bearing seat position.

• Bore ID: 1.181" (30 mm) -- verify the stub shaft OD with a digital micrometer before installation
• Center to base: 3.250" -- one of the tallest 30 mm bore assemblies; confirm this height matches the removed unit
• Long drop brackets experience higher bending stress at the bracket-to-crossmember interface -- inspect the crossmember mounting area for cracks before installation
• The center support bearing rubber isolator volume is adequate at 3.250" height, providing effective vibration isolation

Warning: tall-bracket center bearings are more sensitive to crossmember distortion than compact units. If the crossmember has been pushed or bent (from an off-road impact or previous repair), the long bracket arm will amplify the angular error at the bearing centerline. Verify crossmember geometry before installation -- a distorted crossmember requires straightening or replacement before the center bearing can function correctly.