Description
The 700R4/4L60 & 4L60E suffer from intermittent failure of this bushing…specifically the OEM bushing design. When the bushing fails, it causes damage to the pump stator, which leads to a premature transmission overhaul. Sonnax, an aftermarket company, has developed this upgraded bushing. It utilizes a friction-resistant coating made of a proprietary compound. Long story short, this upgraded bushing is great for a blueprinted transmission, a performance build, and overall peace of mind.
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