Quote:
Originally Posted by StepinNJ
Are they replaceable?? More highway driving gears?
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These rears are extremely easy to change ratio on. It's bolt-in. You pull the axle shafts back,disconnect the driveshaft,remove the entire differential assembly as a unit from the front,and reverse all steps. 4.10 is the tallest gearing you will get. My '92 K3500 has 4.10s with 5spd overdrive and it's perfect. Got grunt power,compression braking,and an excellent hiway machine. Actually,my '85 Jimmy is also 4.10 w/overdrive and an excellent hiway machine as well as great off road and towing. My '72 K2500 has 4.10s with no overdrive and it cruises just fine at 65. I used to drive them 75-80 all day long just fine. These days I am saving fuel at 60-65