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#1 |
Registered User
Join Date: Aug 2004
Location: New Hampshire
Posts: 437
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79 Gmc 3500 Srw - Np203?
Hi guys, I am in the process of buying a 79 GMC one ton for parts. It has a dana 60 front, 14 bolt SRW rear. I looked at the xfer case, and it looks like a 203, not a 205 like I would expect. Shouldn't it have a 205? How can I id the tranny? I think it's a TH400, kind of looks like Illinois, right? But TH350s look like a square with one corner cut off, right? Thanks very much for your help.
Jeff
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Crosby 1978 Chevrolet K10 stepside NH |
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#2 |
Registered User
Join Date: Nov 2004
Location: Jamestown NY
Posts: 731
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Re: 79 Gmc 3500 Srw - Np203?
Another good way to ID a T400 is the vacuum modulator is towards the pass front. T350 is to the rear.
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Support your local search and rescue team.... GET LOST! Originally Posted by DURRTY if some is good more is better too much ought to be enough........ |
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#3 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: 79 Gmc 3500 Srw - Np203?
IIRC, all of the 4wd trucks with autos got the 203 case until '79, and all standards got the 205. In 80, all 4wd trucks got the 205 case, and then the half tons (at least) went to the 208 case.
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#4 |
7000 #'s of american IRON
Join Date: Dec 2004
Location: north tx
Posts: 883
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Re: 79 Gmc 3500 Srw - Np203?
another way to check for the NP 203 is engage the front hubs and try to turn. (plus lack of a 2wd-4wd shifter)
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#5 |
Workaholic
Join Date: Oct 2002
Location: Katy, TX
Posts: 1,589
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Re: 79 Gmc 3500 Srw - Np203?
In '79 the NP205 was only available in manual tranny equipped trucks (I think).
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