Sonnax replacement reverse clutch steels 28131-STK is a service kit with eight plates for the increased active radius reverse clutch kit used in Sonnax Powerglide 1.58 and 1.65 ratio planetary assembly kits.

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Sonnax High Clutch Drum Small Parts Kit, GM, Powerglide, Each

Sonnax High Clutch Drum Small Parts Kit, GM, Powerglide, Each

$69.80