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  1. C

    Axle ratio help

    so youre trying to tell me that if you have rr wheels off the ground and the trans in neutral, spinning the drive shaft by hand that you cant get a close to accurate ratio. There is no slip from drive shaft output to the wheels.Any slippage is from side to side
  2. C

    Fuel pressure problem

    I'll make this short. I have been using an electric fuel pump on my c-20 over 10yrs. Just recently i had fuel supply problem it would stall and you feel through the gas pedal that the carb had no gas. A little later it would start and run then stall. Sorry short story is the fuel strainer in the...
  3. C

    New GMC Owner with shifting troubles

    Not sure if you said you checked the battery voltage after it wouldnt start. If it was good, hot or bad starting relay could be the fault.
  4. C

    New GMC Owner with shifting troubles

    To check parasetic draw, with neg. disconnected, everything shut off. Use 12v test light. One end to battery and the other to cable. If it glows you have a draw. If it doesnt light, youre good. Well unless your battery is already dead. For the tranny normaly when adding fluid you dont need to...
  5. C

    Oil Leak Into Cab

    good point, i was going to suggest to drain the oil and run the engine to see if the leak was still there, instead of crawling under the dash. JK
  6. C

    Brakes

    my 77 c-20 w13x2.5 rr shoes, has a stock PV that has centering pin that needs to be held in with a clip that i made, to properly bleed the brakes. Bleed all 4 corners pull the clip and your good to go

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