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Re: Upper Control arm bushings (grease question)
I always liked the design. Even my heavy 88 model square body cab and chassis still uses that style. When GM went to rubber control arm bushings in 73, they continued the steel ones on heavy applications that needed extreme durability.
Bobs409 is confusing me a bit though. There is a rubber seal to contain the grease but the bushing is steel. I pump grease into them until it oozes out of the rubber seal inside the arm. That forces grease from the zerk all the way across the bushing and out.
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