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Rod · 11-05-2005, 11:34 AM

Roger0800 pretty much nailed the first vin..well maybe a mistake or 2 after looking again

KM20DPB54015

K = 4WD
M = V6
2 = 3/4
0D = Fleet Side Box
P = Pontiac Michigan Plant
B=1968
54015 = Seq. No; 4,015th built

KM1590DKPC1226A

K= 4x4
M = V6
1 = 1/2 ton
59= decodes from axle to rear of cab dimension of 54 inches..so its a long wheel base
OD = fleetside box

P = Pontiac assembly plant
C = 1967
1226 = 226th unit built
A= GVW range 6000 lbs & less

What that K in the middle means between the D and P ..well guessing here... refers to number of cylinders in engine in this case 6 or a mistake.

Like I've said before GMC vins decode differently even between assembly plants. Hard to make a decoder for them.

11-05-2005, 11:34 AM	#6
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Oddball ID number Roger0800 pretty much nailed the first vin..well maybe a mistake or 2 after looking again KM20DPB54015 K = 4WD M = V6 2 = 3/4 0D = Fleet Side Box P = Pontiac Michigan Plant B=1968 54015 = Seq. No; 4,015th built KM1590DKPC1226A K= 4x4 M = V6 1 = 1/2 ton 59= decodes from axle to rear of cab dimension of 54 inches..so its a long wheel base OD = fleetside box P = Pontiac assembly plant C = 1967 1226 = 226th unit built A= GVW range 6000 lbs & less What that K in the middle means between the D and P ..well guessing here... refers to number of cylinders in engine in this case 6 or a mistake. Like I've said before GMC vins decode differently even between assembly plants. Hard to make a decoder for them. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife. Last edited by Rod; 11-05-2005 at 11:37 AM.