Guest windjamer Posted January 27, 2010 Share Posted January 27, 2010 Need some help from Chev. experts,what is the differance betwen the diff. in a 97 s10 Blazer and a 97 s10p/u?? Differantial for blazer says GU4 p/u says gt4,will they interchange?? Link to comment Share on other sites More sharing options...
poci1957 Posted January 27, 2010 Share Posted January 27, 2010 GU4 is a 3.08 axle ratio, GT4 is a 3.73 if my memory is correct. Link to comment Share on other sites More sharing options...
Larry Schramm Posted January 27, 2010 Share Posted January 27, 2010 Will need to change engine calibration if you change axle ratios. Link to comment Share on other sites More sharing options...
Guest windjamer Posted January 28, 2010 Share Posted January 28, 2010 :)thanks guys, bottom line only differance is gear ratio?? so the p/u will fit if I find the correct ratio. Link to comment Share on other sites More sharing options...
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