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Discussion Starter · #1 ·
I have a small block 500hp, turbo 350 trans, 2500 stall converter, ford 9", 26" tall rear tires and a 4:30 ratio. It is spinnin' too many rpm crusin.

What gears do you think I should use? I am thinking about a 3:73 to be able to cruise and still drag race??????????? Thanks
 

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Since you are crusin; I would recomend a built 700R4 trans instead of the TH350. The 700R4 shares many internal parts with the TH350 and can now be built to be just as strong. The beter gearing and a lock up converter in OD will cure your high RPM worries.


Big Dave
 

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Discussion Starter · #3 ·
Yea, but the trans is new and I just want to swap gears and still be able to run the 1/8 mile at the drag strip. Just dont want to turn 4000rpm on the highway at 60mph! Thanks
 

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i went from a 4.11 to 3.55's and ive never been happier..with a th350 it still pulls real good and smokes the tires but also hums on the highway..

or you could buy a gearvenders overdrive unit they handle up to 1000 hp
 

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Discussion Starter · #7 ·
Thanks. A 26" tire is the biggest that will fit. My nine inch has 31 spline axles and 11 incn disc brakes.
 

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I'm using 3.73's and the car has seen plenty of highway miles. I'd prefer to run 3.55 gears probably and give up a tenth or so in ET but the 3.73 is the smallest # gear you can get for a 12-bolt with a spool.

Derek
 
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