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Old 01-25-2013, 02:42 PM   #1
WETOWM
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Rearend code

Trying to decode a 70 12 bolt rearend axle tube is stamped "tph" and then the build date
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Old 01-25-2013, 02:53 PM   #2
ChevyCruizer
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Re: Rearend code

I found this.
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Old 01-25-2013, 02:57 PM   #3
WETOWM
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Re: Rearend code

They must have changed the codes in 71 they are showing tph as a 3/4 ton this truck is a 1/2 ton
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Old 01-25-2013, 03:02 PM   #4
ChevyCruizer
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Re: Rearend code

how about this one?

the other thing to do is open the cover and count the teeth and divide. or look for a stamping on the gears and still divide.

i used this
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Old 01-25-2013, 03:09 PM   #5
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Re: Rearend code

That looks better thanks for the info
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