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  1. 1

    High oil pressure after replacing pump

    Hi guys, My truck has had a leak from the oil pan gasket for some years now. Finally dropped the pan and installed a new fel-pro 1-piece gasket. At the same time i replaced the rear main seal and also the oil pump and pickup because why not when the pan was down. Put new 10-30 oil in, same type...
  2. 1

    Extremely squeeky rear brakes

    Last year I repleced some brake lines and hardware related to the rear drum brakes on my 85 C25. At the same time I replaced the shoes as I saw that they had not been installed correctly by a previous owner. The drums were fine and not replaced. After this I’ve started having extremely squeeky...
  3. 1

    LMC tailgate mat

    Anyone tried this from LMC? Not easy to get a feel for the quality and fitment of it. It says no trimming necessary, but does not specify if it for long or short beds. Pictures? https://www.lmctruck.com/accessories/bed-tailgate-accessories/cc-1973-87-bed-mat-and-tailgate-mat-protect-your-truck
  4. 1

    Loss of power and shaking

    The last couple of trips I’ve experienced some issues with my 85 C25 (350+400). The truck has very limited power above 30mph and shakes more the the faster you go. Kind of lags, and does not have even power distribution. Runs rough and probably misfires. Never had any issues with this...
  5. 1

    Verify defect fuel sending unit

    Hi guys, Original dual tank setup. Right side tank fuel gauge peaks at 3 o clock when selecting that tank. Removed the chassis ground and worked everything with the wire brush, then reattached. Still same problem. This verifies that the fuel sending unit inside the tank is faulty? Check my...
  6. 1

    Proportioning valve vs. load sensing valve

    Been doing some brake work on my truck recently. Had some issues last season and recently replaced all the hardware, shoes and cylinders on the rear wheels. Also replaced the master cylinder and the two lines to each wheel since the old lines where so stuck in the cylinders I had to grind them...
  7. 1

    Tach wire and relay

    Hi friends, Was thinking about wiring up a tach on my 85 GMC C25, but when i looked at the distributor, there was already a cable connected. Where does this lead? The truck has both AC and Cruise control. Both are partially removed for various reasons. Also, whats the function of the relay...

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