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Message: <blockquote data-quote="nyuk98gt" data-source="post: 277403" data-attributes="member: 8810">REEDS98GT: "Transmissions 101" in Tech Articles/Transmissions section of TCCoA.com is where you will find the J-mod described in detail. You will also find two "how-to" articles by A-Train. You won't need the new accumulators (pistons) but you may want the later model springs (you'll see the part numbers listed). It is inexpensive to do and not difficult. Read all of the related articles and then read them again and again. Preparation is the key to success with this work, imo. Once you get the J-mod done, you can invest in a handheld flasher (like an XCal2 or XCal3 from SCT) and tweak the pressures to suit your driving style. You are going to love the final result, especially with the 3.73's. I speak from experience! FWIW, I have the FRPP gears. Others have used Motive gears, too. Correct installation will prevent the gears from whining (but you will notice a tiny bit more whine than the stock gears). HTH, Chris</blockquote>