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  1. Driversound

    GMT400 Newb from SoCal

    Thanks! Single cabs 4x4 are harder to find around my area. I was lucky to find this one. Cleaned up the RPO coding and decoded the options which I'm happy to have. BYP : SALES, SPORT EQUIPMENT PKG C5G : GVW RATING, 5600 LBS GT4 : AXLE REAR, 3.73 RATIO G80 : AXLE POSITRACTION, LIMITED SLIP...
  2. Driversound

    GMT400 Newb from SoCal

    Hello all. I just picked up my 1991 K1500 single cab. Currently has 186K miles but seems to run and shift well. I've always wanted one of these and finally got one that seems to be a good base to start a restore. After breaking down the RPO codes, It is a Z71 and G80, so it has the...
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