how do i find out the front axle gear ratio if my glove box is different

Asked by Feb 12, 2012 at 06:48 PM about the Chevrolet Silverado 1500

Question type: General

doing a 3/4 ton swap and dont know what gears are in the front

5 Answers

345

Pull off the diff cover and count the ring gear teeth and the pinion gear teeth, then divide the pinion gear into the ring gear. That will give you the exact ratio.

I would have to split the whole front differential to be able to do that I was hoping there is a way with out splitting the front axle thanks for your help

185

most differentials have it stamped on the housing but that relys on trusting that the center has never changed you can also try turning the prop/tailshaft and counting how many turns of the shaft to 1 turn of the hub it is not as acurate but it will give you an approximate idea.

2 out of 2 people think this is helpful.
1,715

it is the same ratio of the rear , but if you dont know and the sticker on frt diff not reaadable the dealer can lookit up for you VIN #

Thank you guys I also found out that it should be the same gear ratio or real close to the rear thank you kevin

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