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Look at the Super street 5 speed
Michael C Henry Mike have you looked at the new Richmond super street 5 spds? They are good for 600HP and torque. 5th gear is an overdrive of .78. Get the low gear first of 2.87. T-56 trans has a tork rating of 550hp and torque in the viper. GTO, F-body cars, are less. There are a couple of companies that blueprint and update there trans missions with better main shafts, gears, and end play specs. These trans will support 700hp+. G-Force also sells a 5 speed with a 900+ HP and torque rating. This tans is bullet proof. The gears are straight cut and may make a little noise, but no anything over the side pipes. If you have a lakewood bell housing the Richmond will bolt right in, will need to change pilot bushing in the crank, clutch assembly. Measure the length of the new input shaft. On some applications you need to remove .300" of the tip. If you don't you could wear out the thrust bearing in the motor. Trans mount should be the same location as the Toploader. Either way you are looking at about $4,000.00 for the whole thing. Labor is on you. Rick L. Ps the T56 has soft forks for shifting and plastic covers. Hard shift will wear them out. This trans doesn't like to powershift either.
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