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I have the Eaton posi (aftermarket) with 3.42 gears in my '94 Roadmaster Wagon. I had a full size spare tire in it, but decided to switch to a compact spare to reduce some weight (I like the bark when I hit second gear)... and make it easier to get the spare out of its storage area when I need it.
The compact spare is about 2.5" less diameter than the standard P225/75 tire (when both are off the car). [I estimate the compact spare is 1.75" less diameter than the standard P225/75 tire when under load on the car.] My question is... If I have to use the compact spare on the rear, will it damage the Eaton posi?
I would think having one tire smaller than the other on the rear would cause the Eaton to constantly have to slip. My thinking is that 20 miles to a tire center wouldn't be bad, but how about 200 or even 500 miles to make it home when on a trip?
Thanks,
Kevin.
The compact spare is about 2.5" less diameter than the standard P225/75 tire (when both are off the car). [I estimate the compact spare is 1.75" less diameter than the standard P225/75 tire when under load on the car.] My question is... If I have to use the compact spare on the rear, will it damage the Eaton posi?
I would think having one tire smaller than the other on the rear would cause the Eaton to constantly have to slip. My thinking is that 20 miles to a tire center wouldn't be bad, but how about 200 or even 500 miles to make it home when on a trip?
Thanks,
Kevin.