C10 and gears

Asked by GuruYH7T8 Mar 13, 2018 at 10:17 PM about the 1973 Chevrolet C/K 10 Custom

Question type: Car Customization

I have a 73 Chevy c10 that came with a 6 cly and a
4 speed I took out the 6 put a 350 and a turbo 400
the trans is built to hold 1000 hp the motor will soon
be a full roller motor with a comp cam with a lift of
563 and a 200 shot of nitros. As of right now when I
go down the highway I’m currently at 4,000 rpm
and 70 miles per hour the truck has a 12 bolt rear
any ideas what gears I should run

1 Answer

F_O_R answered 6 years ago

Clearly higher than what you have. Perhaps a 3.73. Find out what you have now and pick a new ratio based on what level of performance/economy/top speed you want but with that level of power you may want to beef up the whole rear axle assembly.

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