Sonnax outer stator race GM-R-15 is a drop-in replacement for the GM 4L60-E (300mm) and 6L80 converters.
GM-R-15 and Sonnax conversion spacer GMBW-WS-40 can be used with the GM 300mm springs and rollers for a cost-effective upgrade to BW 310mm LU (A618), GM TH400 (3L80), AT-540 and Buick TH350 stator clutch assemblies. The upgrade repairs and improves the performance of OE stator cams with problematic roller clutch design.

Drop-in replacement for GM 300mm outer stator race
Use with Sonnax conversion spacer GMBW-WS-40 for a cost-effective upgrade
Fits with inner stator race 2.156" O.D.

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