Product Details

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Superior GM TH350 TH-350 69-79 Automatic Transmission High Performance Posi Shift 2 Stage Pack Kit Improves Your Automatic Transmission! Firms up 1-2 and 2-3 shifts. Includes oil transfer plate to give the best holding capacity in 3rd gear possible. Improves overall performance. The Posi Shift 2 Stage Pac's are by far the easiest available way to step up transmission performance. Replaces worn out separator plate with the new special design plate.