A couple driveline questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chicklin · 03-12-2009, 09:24 PM

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!!

dwcsr · 03-13-2009, 07:39 PM

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

chicklin · 03-13-2009, 07:43 PM

Quote:

Originally Posted by dwcsr

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!

chicklin · 03-14-2009, 09:49 PM

Turns out the castle nut was 1 5/8"

03-12-2009, 09:24 PM	#1
chicklin Registered User Join Date: Jun 2008 Location: Kansas City, MO Posts: 108	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!!

03-13-2009, 07:39 PM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	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.

03-14-2009, 09:49 PM	#4
chicklin Registered User Join Date: Jun 2008 Location: Kansas City, MO Posts: 108	Re: A couple driveline questions Turns out the castle nut was 1 5/8"



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