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Old 04-11-2017, 04:45 PM   #17
El Dorado Jim
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Join Date: Dec 2009
Location: El Dorado Ca
Posts: 3,374
Re: Questions about an inherited '72 project

Quote:
Originally Posted by Steve1954 View Post
Thank you,
That bit of information actually brightened my day a bunch.
The transfer case has a metal tag - Rockwell T221 N 7, Serial Number 02690216.
Transmission has "GM1" "C249" "3901131".
I've googled Rockwell T221 N 7 and found the T221 was used up to '69. No specific reference for "N 7".
The best I have come up with on the trans is possibly a Muncie SM465 which stated in light trucks in 1968 and went to 1991.

I read the forum rules about selling and understand the $25 fee - which is very reasonable.
Im not familiar with the rockwell t-cases, only dana 20 and 205 in the 67-72 trucks...yes your trans should be the sm465, gm started using them in 68, you can tell it is a sm465 if you push the shift lever away from you and down to put it in reverse, the sm420 you pull it towards you and down for reverse

Last edited by El Dorado Jim; 04-11-2017 at 04:56 PM.
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