NOTE: For anyone installing Prothane rear lower control arm poly bushing kit, after removing old bushings from all lower arms, do the following:
- press in Prothane outer metal sleeves only (leave bushings out)
- media blast the outer metal sleeve area to prepare for welding
- weld 2 strips per side of outer sleeves, 4 total per bushing and 8 total per arm, for a grand total of 32 welds
- paint each bushing area with anti-rust paint
- moly lube & install bushings with inner metal sleeves
- continue with lower arm installation
If you do not do this you risk the rear lower control arms sliding along the Prothane bushings do to loosing the "[press-fit", as I caught while my car was on the hoist.
- press in Prothane outer metal sleeves only (leave bushings out)
- media blast the outer metal sleeve area to prepare for welding
- weld 2 strips per side of outer sleeves, 4 total per bushing and 8 total per arm, for a grand total of 32 welds
- paint each bushing area with anti-rust paint
- moly lube & install bushings with inner metal sleeves
- continue with lower arm installation
If you do not do this you risk the rear lower control arms sliding along the Prothane bushings do to loosing the "[press-fit", as I caught while my car was on the hoist.

I've also heard of people using JB weld to secure the sleves in place. What are your thoughts on this method? It is certainly not as stable as a straight weld, but would you trust this to the road?




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