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  1. Copymutt

    78 gmc fiberglass body filler question

    Do you mean filler w/ short strand glass or regular bondo?
  2. Copymutt

    Heater fan

    Already scrolled thru 20+ discussions and no mention of this. 74 K20, heater control worked as its designed-low medium high speed fan. In the process of painting firewall I see the 3 wire connection at the fan box has a low resistance coil of wire between 2 leads. There’s also a cut wire going...
  3. Copymutt

    Removing Door Mirror Anchors

    My 74 just has SM screws threaded into the skin. Reworked them today. Oversized the hole and went with stainless fine thread. Tapped the holes. Yours look like the option is drill them out.
  4. Copymutt

    Bad dash

    Every instrument panel screw hole in my 74 K 20 dash is busted plastic. Any thoughts besides an expensive repro?
  5. Copymutt

    What size press (12 or 20 ton) for automotive

    Have a 12, as said wish I had popped for a 20.
  6. Copymutt

    Shout out to suppliers.

    A big shout out to both LMC & Classic Parts. Order full cab weather stripping, window fuzzies, tail lights, arm rests, repair panels. Great turn around from both. No shortages or wrong items. Really helps move a project along when parts show up on or ahead of schedule.
  7. Copymutt

    Painting my 73

    Did I mention Rabbit Holes! Had a couple yards of Faux Croc skin stashed. Fought the urge to buy the grey to match the paint. Dang rabbits!
  8. Copymutt

    Painting my 73

    Same goin on here. Lot of work & a lot of self control not to go down rabbit holes.
  9. Copymutt

    I know the fuel resistor is 90ohms but what is the wattage

    I=V/R Solve for your case I= .13 amps. But thats not the full circuit. Youve also got the variable resistor of the tank sending unit. Ive not researched the circuit, but any time a ceramic resistor is involved its rated a minimum of 5 watts.
  10. Copymutt

    Door Weatherstrip Install

    Reading between the lines on the door weatherstripping it sounds like LMC nor any other supplier is not the original style that locks onto the pinch weld. Can anyone confirm? I almost ordered last night, now Im in holding pattern to confirm correct design. Even w/ the OEM product the integrity...
  11. Copymutt

    Nit Picking and Just Curious

    Typical fuel boils in the bowl after you stop, drops into the intake. When it gets bad you’ll need to hold the pedal to the metal & crank longer than needed to dry it out. Beyond the basics of float properly adjusted, phenolic carb spacer may block the heat transfer from the heads. It’s worse w/...
  12. Copymutt

    Please Help me get this truck going!

    Im reading that 87’s have catalytic converters. Sounds like your on track, but if you cant resolve it the cat(s) could be plugged. Even a little coolant in the exhaust will hasten their collapse.
  13. Copymutt

    front fender gap

    Making progress, both fenders have decent gaps. Hood is drying, but will require more work. Didn't see the hail damage. Fitment of turn lenses couldn't be much worse. I’ll section out the supporting valance stand offs to bring into alignment.
  14. Copymutt

    front fender gap

    For better or worse I removed the radiator support bushing on the PS. Very close to being true gaps now! Until you attach the bumper. I’ll continue to fuss w/ it including loosening the DS rad support bushing. Bugs me that everything was good B4 I pulled the fenders. Being a plow truck I smacked...
  15. Copymutt

    front fender gap

    Late to the party here. Getting no where trying to align the PS original front fender. Pulled both off for paint. DS back on no issue. PS a choice of 1&3/4” too low at the radiator support or 1&3/4 gap at the bottom of the door. Triangulating from cab hood stops to top of radiator,support...
  16. Copymutt

    2ND Aluminum Radiator Rotting out

    Grab a digital VOM. Black lead to engine block. Submerge red in the coolant via the radiator cap. Anything over 250mv is an indication of electrolysis. Sorry, simultaneous posts.
  17. Copymutt

    13 yr old sons 55 Chevy Gasser Project

    Like to invite you over to Trifive.com. Lots of gasser builds. Huge amount of knowledge. Great guys.
  18. Copymutt

    Am I Cursed by the Carburetor Gods? Or do I just suck with Carburetors?

    Bad ignition wires can cause cross fire when they get close to each other. Ck. for deterioration and routing away from each other. This would most likely be intermittent.
  19. Copymutt

    Thoughts on running 10 year old tires?

    Here’s an interesting tid bit concerning weather checking. Mid 90’s i had a set of Cooper Discovers, 10 ply on my K20. This truck was basically relegated to a plow and wood truck. Try as i may the Colorado sun destroyed the sidewalls, severe weather checking due to the sun and lack of use. I...
  20. Copymutt

    Howdy

    Hello from Colorado. Just joined after reading the door slam fix w/ Pex. 74 K20, 350, Quadrajet, dual tanks, Flowmaster 40’s, Hooker headers, one ton springs. Bud wheels. Bought it in 78. They don’t make old iron like this anymore. Came off the scales more than once w/ 4000# load. That’s the...
  21. Copymutt

    Fix Slamming Doors - Striker Door Latch Repair

    Snowin & blowin here. just finished plowing w/ the K20 & decided enough is enough, time to fix the door latch. Made no progress pulling the panel and lubing the mechanism. Hit YouTube & found this. I gotta say I thought yea, like that’s gonna work. Ten minutes later better than new and now to...
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