Quote:
Originally posted by Sr2003
CBS - Classic Body Style (pre 87 1\2 ton pickups and pre 91 3\4 - 1 ton pickups, suburbans, or K5 blazers.
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just to clarify..... only Blazers, Suburbans, and 1 ton crew cabs retained the classic body style SFA until 1991. everything else went to obs ifs in 1988. (88-91 3/4 tons are obs ifs)...... it has to do with the cab, not the gvwr. basically GM coulen't figure out how to make anything bigger than extended cab in the ifs bodystyle until 1992.
Quote:
Originally posted by Sr2003
10 bolt - Referring to the strait axle found under all 88+ 1\2 ton GM pickups. 88+ 4x4 versions came in 6 lug only. Semifloating axle with C-Clips holding in the axle shafts. Commonly 8.5" ring gear.
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10 bolt front axle..... 1977-1991 1/2 & 3/4 tons... 6 & 8 lug; All Full-Floating, exterior hub axles
10 bolt rear axle...... 1981+ 1/2 tons*; 6 lug only; C-clip axle
*note: some 1/2 tons came with 14bSF rear axle
both 8.5" r.g.