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Simple computer tuning of shift time tables
Turbo 350 TH350C TH375 TH400 3L80 Vacuum Modulator
When excess wear occurs at the TCC valve end plugs
Allomatic Brand "smooth bottom" fits 1991-96
7 Overdrive (4-5-6) Clutch
Sonnax 77763-01 Transmission Boost Spring, 3-4 Clutch (10 Per Bag) 4L60E 4L65E tools Simple computer tuning of shiftBrand: Sonnax Other Part Number: S74970 3K Interchange Part Number: S74970 Manufacturer Warranty: Yes Items Included: 10 Loose Springs Manufacturer Part Number: 77763 01 Universal Fitment: Yes Performance Part: Yes 4L60, 4L60 E, 4L65 E, 4L70 E Transmission 3 4 Clutch Boost Spring Part No. 77763 01 Fits '88 later units. Package Quantity: 10 Sonnax 77763 01 boost springs offer a low cost, direct replacement alternative to the OE springs in GM 4L60, 4L60
