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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#74050 02/28/2007 9:30 PM | Joined: Nov 2006 Posts: 102 'Bolter | | 'Bolter Joined: Nov 2006 Posts: 102 | This one might be for Bill.....I cannot find a tag or number on the transfer case on my 63 GMC 4x4 suburban. Then again I don't know where to look. I have cleaned the case and can see numbers for the input and output shaft holders but not the case itself.
If I take photos would that be a way to identify it?
Any Ideas?
Thanks in advance for any help.
EB. | | |
#74051 03/01/2007 1:29 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Most likely, it'll be a Timken model 221. It could also be a Rockwell, they are very similar. I'm not 100% sure where to tell you to look on the T-case to find the ID, but usually they either have a tag or casting mark on the case between the input/output shafts.
A picture might help, I'll look in my manuals some more and see if I can find out some more info.
Bill Burmeister
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#74052 03/01/2007 4:37 AM | Joined: Jul 2006 Posts: 187 Shop Shark | | Shop Shark Joined: Jul 2006 Posts: 187 | my '63 K10 was a Timken T-221. Was actually able to find bearings and seals at Checker's main store in Phoenix. Gears and shims were another issue. Had to buy a second one to make one good one. Take good care of it cause parts are hard to come by. | | |
#74053 03/01/2007 4:22 PM | Joined: Aug 2000 Posts: 800 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 800 | "it'll be a Timken model 221. It could also be a Rockwell, they are very similar"
So similar in fact, that they are the same. Rockwell bought Timken When your talking about about a Rockwell T-221 or a Timken T-221, you are talking about the same transfer case.
The ID numbers are stamped on the drain boss on the left side of the case. | | |
#74054 03/01/2007 11:23 PM | Joined: Nov 2006 Posts: 102 'Bolter | | 'Bolter Joined: Nov 2006 Posts: 102 | I'll be in the garage Sat. and will crawl under and take another looksee!
When I called Napa to see if they had then input and output seals they did not ask for the model of the T. C. they just took the Suburban info and found the seals. I never thought to ask what the case was.
As always youz guyz are something else!
Thanks
EB. | | |
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