Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Bruiser, May 21, 2000.
Anyone have some links to pictures of the various Transfer cases, Dana 20, NP 203 and NP 205?
april 2000 issue of petersen's 4wheel and off-road. they give pics, specs, pros, and cons of 11 different t-cases.
goo goo gaju
I don't know if this is what you need to know or not, but I have an easy way to tell if you have an NP205. On the back of the T-case look in the center of it. The 205's have a small circular piece of metal with 3 bolts holding it down. Its almost like a big silver dollar with 3 bolts in it. Anyways, the 205 is the ONLY one with that. Its how I tell the difference. I don't think I've ever seen a Dana 20. They mainly went in 3 speed trucks with smaller engines. And the 203's are easy to pick out just because they're so big.
Chevy good...Ford bad
The only GM application of the Dana 20 is in 1st gen. Blazers. Most of them were in '69 and '70s, but they were used through '72. Maybe a few '73s or '74s had them also?
1970 Blazer CST 4X4 350 SM465 NP205
1987 Suburban 4X4 350
1988 Chevy Pickup 4X4 350
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