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#1
02-03-2022, 01:15 PM
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Driveshaft Size and Clearance
About finishing the build on a 1967 GTO. Drag race only. Measured for a driveshaft with weight in car and car at ride height. 59.25" This is with stock location solid motor mounts, TH350 trans, 12 bolt rear w/4:56 gears. I expect the motor to cross at 6400-6500 RPM.
Strange would not make a driveshaft that long with that RPM range. Precision Shaft Tech. will sell me a 4" aluminum for about the same price as the strange 3.5" chromoly. Since the rear is up in the car and I had to shim the trans up for pinion and driveshaft angles I am out of clearance. Do I really need the 4" shaft? Stock driveshaft is already about hitting front driveshaft loop. No way I can get a 4" to fit without really cutting up the floor which I don't want to do. Any recommendations? |
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