Non Sure Grip 8.25 rear with 3.55 gears?

Mr Gorsky · Jul 10, 2016

Hi all,

I've got a non Sure Grip 8.25 rear in my car. No tag on it, so I've jacked one wheel and spun it twice. I got 3.5 turns of the prop shaft.

Did the factory ever supply 3.55's in a non Sure Grip rear??

Richard Cranium · Jul 11, 2016

poly3521 · Jul 11, 2016

If I'm not mistaken, the only gears I know that they put in them was 2.45, 2.76, 2.94, 3.23. I'm betting it's 3.23, pull the cover and look for the tooth count on the ring gear, or count the teeth. If it has 3.23 gears, it might have a bad sure grip that needs clutches

Kern Dog · Jul 11, 2016

I have an 8 1/4 axle with a 3.55 one wheel peel. the axle came from a Dakota pickup.
The 1974 Duster 360 could have been ordered with a 3.55 in its 8 1/4 axle. Sure Grip was optional.

polywideblock · Jul 12, 2016

got an 8 1/4 with 3:23 sure grip in the roadrunner

Kern Dog · Jul 12, 2016

Ten bucks says that the Road Runner 8.25 is a 3.21 ratio. I've never seen a 3.23 in an 8.25 axle, stock anyways.

Non Sure Grip 8.25 rear with 3.55 gears?

Mr Gorsky

Member

Richard Cranium

FBBO Gold Member

poly3521

Well-Known Member

Kern Dog

Life is full of turns. Build your car to handle.

polywideblock

FBBO Gold Member

Kern Dog

Life is full of turns. Build your car to handle.

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