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  1. K

    Air Deflector Differences

    Thanks. I have one from a 4x4 that I was going to put on my C2500. Sounds like it will work and look good.
  2. K

    Air Deflector Differences

    Thanks for the help.
  3. K

    Air Deflector Differences

    I see from parts catalogs that there were different air deflectors (the piece that fits under the front bumper) between 2WD and 4WD trucks. What would be the difference? Height of deflector? The bumpers wouldn't have been different for mounting holes, would they?
  4. K

    Adding Cruise Control

    Would there be any difference between the cruise servo for a '83 350 with carb and a '87 350 with fuel injection?
  5. K

    Adding AC...Followup

    I had posted a question about aftermarket AC kits for my 83 GMC C2500. I've got a lead on an 87 parts truck with AC. How hard of a conversion is it to put AC in a non-AC cab? Anyone here done that already and have some pointers? Thanks.
  6. K

    Adding Cruise Control

    Don't know if this is the correct forum to post this question, but how hard is it to add cruise control to an 83 GMC C2500? It's currently got the basic (non-tilt) steering column with basic turn signal lever. I've got a GM shop manual that shows all of the different components, and a parts...
  7. K

    Adding Intermittent Wipers

    My 83 GMC C2500 currently has the two speed, dash-mounted wiper switch. I see that there was a "pulse" option available as well. What is needed to add the Pulse system to my truck? I'm assuming it's not just as easy as adding the pulse switch...is there a module that is needed as well? Thanks.
  8. K

    Rubber Flooring Question

    Does anyone know if the rubber flooring sold through USA1 Interiors for 81-87 regular cab is precut/fitted? Or is it just a roll of generic rubber flooring that I have to wrestle into position?
  9. K

    83 GMC...Another Question

    Thanks for all of the replies. I'm going to head down the road of fixing up the 83 GMC. What aftermarket sources of parts are the best? When I put the replacement bed on the truck, I ordered a few things from LMC truck. Their bed bolt kit was just hardware store carriage bolts that weren't...
  10. K

    Adding AC

    Has anyone used an AC kit from Vintage Air to put air conditioning in their truck? I'm thinking of adding AC to my 83 GMC C2500. Am I correct that from the factory the cabs were different between AC and non-AC trucks? So to avoid having to cut different holes in the firewall, I'm looking at the...
  11. K

    83 GMC...What to Do

    Sorry for the long post, but would like to get some thoughts from other square body fans... I'm looking for some help in deciding what to do with my current truck. It's an 83 GMC C2500 fleetside that has around 140000 on it. I've had it for over 20 years and treated it well during the time...
  12. K

    AMD Inner Fenders

    Hello. I eventually want to replace the inner fenders on my 83 GMC C2500. I'm in Wisconsin, so my chances are fairly slim of finding rust free examples. I've seen mention of AMD having good quality aftermarket body parts. Are their inner fenders any good?
  13. K

    Transmission Indicator

    Turns out that I had a spare cable on an instrument cluster that I bought at a car show. However, this cable is the "new style" with a different clip than what is on mine. I tried to open up the little clamp that was holding the remnants of the original cable on the original clip, but the...
  14. K

    Transmission Indicator

    Is there any way to repair the cable? I opened up the dash last night and just the cable is broken.
  15. K

    Coolant Temp Gauge Question

    Checked the sender wire tonight and I have 12 volts at the connector. No change in the gauge when sender wire is disconnected. I plan on checking out the gauge next.
  16. K

    Coolant Temp Gauge Question

    Thanks for the replies. I will check out the sender to see if that is the issue.
  17. K

    Transmission Indicator

    Something broke behind the dash and I no longer have an indicator of what gear the transmission is in. This is on a 83 GMC C2500. How difficult is it to repair the indicator, and what are the usual suspects to break in the indicator? Thanks.
  18. K

    Coolant Temp Gauge Question

    The coolant temp gauge on my 83 GMC C2500 is pegged at max temp, I'm assuming the problem is in the gauge and not the sender. What do I need to replace to get the temp back working? Can I just replace the gauge or do I have to swap out the whole instrument cluster. Thanks!
  19. K

    Speedometer Gear Question

    Not sure if this is the correct forum for this question, but I've got a question on what speedometer gear to use with the TH400 tranny in my 83 GMC C2500 after switching to a 4.10:1 differential ratio. I've attached a picture of what is on the transmission now for speedometer setup. What do I...
  20. K

    Exhaust Manifold Follow-up

    Thanks for the replies. So any rams horn manifolds that would fit a 350 would work on my engine, regardless of year? I'm hoping to get to the Jefferson WI car show in few weeks and want to know what to look for.
  21. K

    Exhaust Manifold Follow-up

    I had posted a message a short while ago about exhaust manifold options for my 83 GMC C2500 now that the currently-installed headers on the 350 have started to rust out. Since the original post, I've determined that the engine is actually a 1975 350, possibly from police interceptor (see other...
  22. K

    Engine ID

    Hello. My previous question about what exhaust manifolds to use on the 350 in my 83 GMC C2500 got me thinking that I should check to see if someone swapped engines before I acquired the truck. After cleaning off the grease I've come up with these numbers: Engine Casting Number: 3970010 Engine...
  23. K

    Exhaust Manifold Options

    What are AIR ports? I noticed the AIR right manifold has a shroud with a port on top, which should align with a tube that hangs down from my truck's air cleaner and that currently just rests on the header pipe. I've always assumed that allowed warm air up into the air cleaner but didn't do...
  24. K

    Exhaust Manifold Options

    I checked the VIN and it has an "M" code engine. What is the difference between the "L" and "M" code engines? Both are listed at 5.7L and 4BBL carbs.
  25. K

    Exhaust Manifold Options

    Thanks for the replies. Was a dual exhaust system an option on my C2500? I'm away from the truck right now but will check the VIN when I have a chance. Also, were all trucks equipped with catalytic converters? Mine doesn't have one now...just curious if I'll need to install one if I put on the...

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