Help identifing a rear axle
I have a truck with a 12 bolt . Near as I can figure with a TH350 at 55mph I am only turning around 16-1700 RPM with 28" (275-60-15) tires which makes the gears very close to 2.56
Here are the numbers I found on the axle. Can someone tell anything from these numbers. Diff. is single rib, numbers on cast are E8-81, NF3896838, GM57 and a stamped number on top of passenger side tube HA 05 22W When truck is on jack and I turn one wheel the other turns the opposite way but it will lay 2 tire tracks if you gas it at start. IS it possibly Limited slip? |
open your glove box, there is a sticker in there that will give you the RPO code for the rear axle..... it should be a "G" code if I am correct, exp G80... then google that code and you will know your axle ratio...... good luck
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This truck is 45 years old and probably doesn't have the original axle anyway much less the original glove box.
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ok, sorry you did not state that in your question....... im sure someone out there will be able to help.......
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Go to "FullSizeChev" those guys are always messing around with stuff like this.
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Thanks USMARINE
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