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Old October 28th, 2010, 06:27 AM   #1
JeepinJoe
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Default Two Axle Questions

First, what's the best way to figure out gear ratio when looking at junkyard axles?

Second, if I were to weld the spider gears, can they be taken out of the carrier without having to cut or grind the welds apart?

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Old October 28th, 2010, 06:50 AM   #2
Suta99
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If the axles are not in the vehicle just turn the pinion and count how many times it goes around to spin the wheels 1 full turn.

you have to cut the spiders apart
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Old October 28th, 2010, 06:56 AM   #3
buttercr125
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Pull the cover off and look at the ring gear for the tooth count stamped into it. That is the best way.

X2 on cutting them.
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Old October 28th, 2010, 07:34 AM   #4
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depends on the axle and what carrier it uses, if it uses a 2 piece carrier no, otherwise yes on cutting them out.

Check for a tag on one of the diff cover bolts if it is still there, otherwise either of ^ is good
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Old October 28th, 2010, 10:37 AM   #5
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The best, no room for error way would be to pull the cover and count the teeth. ring gear/pinion= ratio.

If you can find and read the numbers stamped on the ring gear that would work too.

If it's a locked or limited slip axle you can turn the pinion and count how many times the wheel turns. If it's open you need to be careful. If only one side turns count the turns and divide by 2.

I've heard of axle being re-geared and the original tags being left on so I wouldn't trust the tag.

If i was buying a junkyard axle I would want to pull the cover anyways if possible.
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