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  1. FLGS400

    Passenger Side Head Water Port Problem

    So, I decided to put a mechanical temperature gauge in my 1991 C1500 with the TBI 5.7. I wanted to keep the stock temperature gauge functional, so I am using the 3/8 NPT port in the passenger side head, that was plugged. I bought the square socket to get it out and it rounded out the square...
  2. FLGS400

    1988-1994 "Moon" Gauge Compatibility

    OK my GMT400 gurus, I have a question that I could not find a direct answer to in using the search feature. My odometer has not worked since I bought my 1991 5.7 Automatic Regular Cab Step Side truck, with the Moon type gauges. I removed the gauge cluster last night and disassembled it. Due to...
  3. FLGS400

    Cutting Progressive Springs

    Hello there fellow GMT400 fans and gurus! I have a 91 C1500, standard cab, short bed, step side. The front has been lowered 4" (assuming), by springs only. My plan is to remove those and install some 2" drop spindles, and cut a coil off of a set of stock replacement springs, for an added 2"...
  4. FLGS400

    1991 C1500 in Florida

    Hello fellow GMT400 fans. As I put in my introduction last week, this is going to be the thread about my truck. I purchased it last week, a 1991 Chevrolet C1500 SCSB Sportside. The PO had the truck painted by his mechanic, along with lowering it, replacing some interior items (dash and...
  5. FLGS400

    First Time GMT400 Owner

    Hello folks! Been lurking here for a while and registered about a month ago to learn more about these GMT400 (OBS) trucks. Just picked one up today, and this is the first time I've had one. I'm no stranger to things Chevrolet, as I have owned a bunch in my life (Mostly Chevelles, Camaros, and...
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