We use the Transgo High Performance shift kits here. They come with a new set of direct clutch release springs, a HD snap ring for the case to retain the intermediate clutches and a fully adjustable shift program with good instructions. The Transgo kit retains most of the stock components where most other kits will have you disable accumulators, block off passages and leave out check balls. We've found the resulting "window shattering" shifts to be extremely hard on the internals. The Transgo kits, when correctly installed provide firm/smooth shifts at light throttle and very firm shifts at heavy/full throttle.....Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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