Sonnax Sure Cure Kits combine the best Sonnax products into one box, offering rebuilders a convenient and cost-effective way to address common transmission problems. These kits simplify ordering, stocking and estimating job costs, and include easy-to-read, step-by-step instructions that cover the inspection and repair of the most critical areas of the unit, and even a reference list of rebuilding specifications. Note This kit is fully compatible with '93-'96 units, which are identified by a steel TCC apply valve that will fit in a 15mm wrench. For '97 & later units with an aluminum TCC valve that will not fit inside 15mm wrench, use SC-4T60E-1. Contents 1-2 Roller Clutch Spring Kit Thrust Washers (2) Differential Side Gear Pump Slide Pivot Pin Modulated Line Boost Valve Kit Reverse Boost Valve Kit TCC Regulator & Isolator Valve Kit Oversized TCC Apply Valve Kit Checkball .375" Dia. Checkballs (9) .250" Dia. Shim Input Clutch Hub .010" Shim Input Clutch Hub .020" Shim Differential Carrier-to-Case Retainer Clip Boost valve