September 25, 2025

Stop Chrysler RFE OD Inner Retainer Wear Forever with a Sonnax Heavy Duty Upgrade

Presented by Sonnax

Stop RFE Inner Retainer WearThe Sonnax heavy duty inner retainer housing kit is an easy, effective Chrysler RFE upgrade when a worn retainer needs replacement or the transmission is rebuilt to handle more power.

Watch this video to learn how the combination of tough steel inserts and a custom aluminum retainer eliminate the risk of wear and help prevent Overdrive clutch failure in ’07-later 45RFE, 545RFE and all 65RFE, 66RFE and 68RFE units. You'll see how easy it is to install, why OE retainer damage happens and how to choose between two equally effective kit options — one all-new and one remanufactured — that makes this an easy win for any build budget.

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