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Ring and pinion backlash question
Installing Richmond gears myself. Fun times!!! It calls for .008" backlash. BUT, I have read many times in many forums where the lash is set a little tighter for race only cars, as heat buildup isn't a problem on short quarter mile runs. Question is - how much tighter should I set it? Set it at .006, .005, .004?
I am taking my time and want this setup to be as close to perfect as possible when finished. Thanks in advance!
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1979 RS weighs 3580 lbs. with me in it. 406 w/ Victor Jr, Pro Systems 850 CFM carb, Pro Topline 220cc heads, solid roller cam with .630 lift, 264-270 duration @.050, Ross -5cc mini dome racing pistons, 12.5 to 1 compression, Forged crank and rods, splayed 4 bolt mains, 1.875" headers. Converter stalls at 3200, Trans Specialties turbo 350, 4.10 gears. Fastest to date is 10.87 @ 123.
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