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axles again

Discussion in 'Chevy Trucks' started by RICHARDM, Nov 26, 2001.


    RICHARDM Junior Member
    Messages: 8

    this is a reply to thelawnguy. I have two g codes in the glove box for the axle ratio. they are g80 and gt4. The 86 suburban has a 350 rebuilt with a 700r4 trany. I'll mostly be doing highway towing and a little bit of playing in the bush. It is not a 4wd.yet.
  2. thelawnguy

    thelawnguy PlowSite.com Addict
    Messages: 1,011

    GT4 is a 3.73 ratio axle, G80 is Positraction, limited slip. Good combo for a 'burban, as long as its a 4 speed auto not a 3 speed. It will tach around 2100 rpm in 4th lockup at 70mph.