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Old 03-12-2009, 09:24 PM   #1
chicklin
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A couple driveline questions

What size is the pinion retainer nut (the nut that holds the yoke on) on the rear diff of a '54 3600? It appears to be 1 3/4", but I couldn't find it for sure.

Also, what is the part number or Spicer number (13xx?) for the u-joints in the same truck? Are all 3 the same? Thanks!!
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Old 03-13-2009, 07:39 PM   #2
dwcsr
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Re: A couple driveline questions

The parts book says the nut is 1"-20 thread, from 41 - 72, 3/4 - 1 Ton, so it may be 1-3/4 nut

Ujoint
41-59 3/4 - 1 Ton 3889696
spicer 5-146X, 3-15/32" Over All Length. All locations

Last edited by dwcsr; 03-13-2009 at 07:40 PM.
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Old 03-13-2009, 07:43 PM   #3
chicklin
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Re: A couple driveline questions

Quote:
Originally Posted by dwcsr View Post
The parts book says the nut is 1"-20 thread, from 41 - 72, 3/4 - 1 Ton, so it may be 1-3/4 nut

Ujoint
41-59 3/4 - 1 Ton 3889696
spicer 5-146X, 3-15/32" Over All Length. All locations
Awesome, thanks!
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Old 03-14-2009, 09:49 PM   #4
chicklin
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Re: A couple driveline questions

Turns out the castle nut was 1 5/8"
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