6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > Transmissions and Rear Ends


Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

Reply
 
Thread Tools
  #1  
Old September 10th, 2017, 07:56 PM
bpmcgee bpmcgee is offline
Member
 
Join Date: Sep 2016
Location: Aurora, IL
Truck: 1961 Suburban
Age: 57
Posts: 54
Rep Power: 60
bpmcgee is on a distinguished road
Default '61 Dana 44 BOM?

Hi,

My '61 'burb has the standard Dana 44 rear end, with 3.07 gears. I want to replace the bears and seals.

I got underneath today to try to find some ID numbers, but the "2375-1" that I found on the tube didn't match up with anything I could find on the Dana site.

Any clues that would help me find a master rebuild kit (or any parts list) for it? The local trans shops aren't being as helpful as they used to be.

B
Reply With Quote
  #2  
Old September 11th, 2017, 03:07 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,605
Rep Power: 513
AZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really nice
Default Re: '61 Dana 44 BOM?

I rebuilt my 1960 Dana 44. I will dig out the parts I used. What bearings and what seals are you prepared to do?
1. Pinion bearing
2. Carrier bearings
3. Wheel bearings
4. Wheel seals
5. Pinion seal

There is no crush sleeve. The proper way is buy two sets of bearings. One is for calibration. Other is final. The calibration set gets lightly ground to be able to slip on and off. You can do the differential any way you want. Just my advice. I did it per the book. I will post part numbers on Mon if your diff is era correct. The D44's are pretty much the same. Your ring gear will have a date and the ratio. Mine was 3.92 . 4X4. The kits will include a set of shims for all areas.
Do you have a cast marking saying 44? AKA HO35. Is it a drop out or a 10 bolt "corporate"? or is it a newer swap out? Just being sure because lots of things happen to trucks over the years.

Last edited by AZKen; September 11th, 2017 at 03:19 AM.
Reply With Quote
  #3  
Old September 11th, 2017, 01:21 PM
bpmcgee bpmcgee is offline
Member
 
Join Date: Sep 2016
Location: Aurora, IL
Truck: 1961 Suburban
Age: 57
Posts: 54
Rep Power: 60
bpmcgee is on a distinguished road
Default Re: '61 Dana 44 BOM?

Ken,

Thanks! Yeah, the casting says 44 on it, and the ratio tag still says 3.07. I didn't find a posi tag, so short of opening it up to check, I think it's open.

This is something I don't have the experience or precision to do myself, so I'm going to pay a transmission place to do it, but they all say "find the parts and we can do it."

It leaks from the pinion seal and the wheel bearings need changing. I think they will have to have it all apart to fix those two, and for the incremental cost it doesn't seem to make sense to put it back together with anything used. I'd like to get the equivalent of the "master rebuild kit" with pinion, carrier, and wheel bearings and seals.

B
Reply With Quote
  #4  
Old September 11th, 2017, 02:07 PM
jbgroby's Avatar
jbgroby jbgroby is offline
Senior Member
 
Join Date: Jan 2013
Location: Lacombe, LA.
Truck: 1960 8' fleetside
Posts: 696
Rep Power: 268
jbgroby will become famous soon enoughjbgroby will become famous soon enoughjbgroby will become famous soon enough
Default Re: '61 Dana 44 BOM?

I too changed my rear gears, I found all the parts and barings from Precision Gear. I put on new everything.


https://www.summitracing.com/search/...precision-gear
Reply With Quote
  #5  
Old September 11th, 2017, 10:01 PM
James James is offline
-= Extreme Supporter =-
 
Join Date: Jun 2013
Location: Greer, SC
Truck: 1964 GMC 1500 2wd
Age: 69
Posts: 432
Rep Power: 199
James will become famous soon enoughJames will become famous soon enoughJames will become famous soon enough
Default Re: '61 Dana 44 BOM?

This is the place I went to for my Dana 60:
https://www.ringpinion.com/DiffWizard.aspx
Use the Wizard on the right.

I had replaced everything inside the rear axle and installed a limited slip unit too.
Reply With Quote
  #6  
Old September 12th, 2017, 03:47 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,605
Rep Power: 513
AZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really nice
Default Re: '61 Dana 44 BOM?

I think my numbers are old but the wizard posted by James is what you want. I get Kit YK D44-Rear or ZBK D44-Rear. I used spyder kit ZIKD44-S-30. (30 spline). I see that PN on the Randy's site also. The extra bearings for set up ,I think, are Carrier=cone 25577/cup 25520 D and Pinion= cone 02872/cup 02820

The ZK D44-Rear has Koyo bearings and YK has Timken.

Could not find a shim pack on that site.
My box says U.S. Gear which is associated with Yukon Gear.
Classic Truck Parts now has quite a selection of differential parts for Spicer Dana 44. Check out Jake's info. I believe 60-62 stuff might be different than 63-66.

Axle bearing 514003 (O'Reilly's). This is the kind with a pressed on collar. To remove old, you drill a hole partial way thru and split with a chisel.

There is your BOM. If a wizard only has 1/2T 4X4/K10, I pick that and use the rear parts. Same diff as 2X4.

Last edited by AZKen; September 12th, 2017 at 08:25 PM.
Reply With Quote
  #7  
Old September 12th, 2017, 02:12 PM
bpmcgee bpmcgee is offline
Member
 
Join Date: Sep 2016
Location: Aurora, IL
Truck: 1961 Suburban
Age: 57
Posts: 54
Rep Power: 60
bpmcgee is on a distinguished road
Default Re: '61 Dana 44 BOM?

Thanks guys!

B
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Parting out 305E, SM420, Rockwell Tcase, Dana 44 & Dana 60 Larry 1960-1966 GMC Marketplace 5 October 1st, 2015 05:11 AM
dana 44 Archiver Previous Forum Posts 1 July 20th, 2011 03:52 AM
dana 44 Archiver Previous Forum Posts 0 August 31st, 2009 01:14 AM
dana 44 Archiver Previous Forum Posts 0 March 22nd, 2008 01:38 AM
dana 44 Archiver Previous Forum Posts 0 January 14th, 2007 12:21 AM


All times are GMT +1. The time now is 07:08 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 671711554703|1710439705|0