4R70E, 4R70W, 4R75E, 4R75W, AODE
Bore Sizing Tool
Part No. 76948-BST2
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MSRP: $48.54 at Sonnax Tool Shop
Bore Sizing Tool for 76948-14K. Required use of the Sonnax bore sizing tool, 76948-BST2, removes the bore ridges that lead to valve stickiness and resizes the bore for optimum fit with the Sonnax valve.
