Rear differential gear ratio

Tiny
RAY.GEORGE59
  • MEMBER
  • 1964 CHEVROLET TRUCK
Is there a place I can look to find the gear ratio for ther rear end of my 1964 c10 stepside truck? It has a 12 bolt rear end in it. Originally it a a straight six engine with a 4 speed manual trans w granny low.

Also is there a place that can print me or just give me the factory windows sticker specs for this truck by the vin?

Thanks for any help you can give.

Ray
Monday, August 29th, 2011 AT 7:00 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I don't believe they kept those records back then.

You can find out by counting the turns. Mark the bottom of both tires with a crayon. If it's a limited slip, count the turns of the driveshaft to make one revolution of the tire. If it not a limited slip. Hold one tire still and turn till the other one rotates 2 turns. You'r choices should be like 2.90 - 3.23-. 3.73 - 4.11
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Monday, August 29th, 2011 AT 7:19 PM

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