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jeffspower · 11-20-2007, 06:57 PM

3.21's are as low numerically you can get for the 14 bolt. I put 3.21's in my 88. The spring pads are alot further apart on my '88 than on a 73-87 one ton. 73-87 3/4 tons have spring pads further apart than the same years of one tons, but still nowhere near the 88-up. Shock mounts are different on 88-up also.

11-20-2007, 06:57 PM	#102
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Re: GMC V-12 powered '91 Chev crewcab 3.21's are as low numerically you can get for the 14 bolt. I put 3.21's in my 88. The spring pads are alot further apart on my '88 than on a 73-87 one ton. 73-87 3/4 tons have spring pads further apart than the same years of one tons, but still nowhere near the 88-up. Shock mounts are different on 88-up also. __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car