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Old 03-07-2018, 02:42 AM   #1
MiraclePieCo
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Join Date: Sep 2014
Location: USA
Posts: 2,249
Rear end ratio for 700R4?

Just decoded the GM 12-bolt rear that came with my '51 panel truck - it claims to be a 2.73 ratio. Is this too high to be suitable for a 700R4 overdrive trans? Stock SBC motor and trans, 28" tires. Most of my driving is freeway and I virtually always accelerate like your granny.

PS: Online speed/rpm calculators show that at 65 mph I'll be turning about 1500 rpm.

Last edited by MiraclePieCo; 03-07-2018 at 03:48 AM.
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