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  1. N

    axle difference in 1988-1998

    No it's a gmt400. 88-98 body style k3500.
  2. N

    axle difference in 1988-1998

    so ive got a 1988 k3500, and the rear end decided to eat the g80 spider gears. its a 9.5 inch sf 14 bolt 3.73 geared. I was just going to upgrade it to the 10.5 ff 14 bolt, but im getting conflicting info online that the axles im looking at fit 90-98 gmt400's, so my question is whats the...
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