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  1. SlickGTP

    How to solve an exhuast backfire?

    My truck from high school started backfiring when the exhaust doughnuts failed at the manifold to exhaust piping. The exhaust leak wasn't real noticeable, but the backfire was. :) Just make sure if you replace those, you tighten the bolts back up evenly. I didn't/couldn't and the new...
  2. SlickGTP

    Rear sliding window help!

    These guys seem to have been able to cobble together parts from various sources to rebuild theirs. I'm guessing the parts would be similar for ours. http://67-72chevytrucks.com/vboard/showthread.php?t=559651
  3. SlickGTP

    How much MPG does your 454 get, and TBI conversion?

    I just figured out what my last fill-up came to on the mileage and I squeaked out about 11mpg in the Ol' Girl with mixed driving. She's carb'ed with a nearly tuned Quad and has 31" tires and 3.08 gears. So, I think I could probably squeeze a few more out of her if I tried changing a few other...
  4. SlickGTP

    Gearing with rpm rang

    Which transmission do you have? If you have either the TH-350 or TH-400, then 3.73s would put your RPMs around 2800RPM @70mph. 35's would bring the RPMs down to about 2500... The problem with taller tires is that it would hurt your acceleration. But, the reverse is also true in that if you...
  5. SlickGTP

    What have you done to your square lately??

    Got the ol' girl out for a little drive this morning when I took the dog to the vet... She's a happier truck when I get her out more often, but I still need to do a bit of tuning. The dog was pretty happy too... She loves rides in the truck. :)
  6. SlickGTP

    LED dash lights!

    I got some cool white ones from superbrightleds.com
  7. SlickGTP

    Quadrajet help!

    Good news! I've got one I can spare... :) PM me your address and I'll get it in the mail. :cheers:
  8. SlickGTP

    Quadrajet help!

    I found one so far, but let me make sure it's not the one I need... I know I have another carb buried in the garage somewhere, just keep forgetting to look.
  9. SlickGTP

    Quadrajet help!

    Let me look at my stash and see if I can find that linkage.
  10. SlickGTP

    Quadrajet help!

    Can you take a picture of that side of the carb? I have various linkages and the link that 350runner posted is a good resource.
  11. SlickGTP

    What have you done to your square lately??

    Took her out for a couple of trips out on the freeway to blow the cobwebs out and run errands. Got a compliment as I was about to leave Home Depot. Amazing how many people love these old squares...
  12. SlickGTP

    going "Pro Street" - the affordable way!

    Looks similar to what @JKnight did to his... Checkout his build thread: http://www.gmsquarebody.com/forum/showthread.php?t=1647
  13. SlickGTP

    at my wits end on power steering pump

    Napa has gone the same route as the other parts stores lately... Had to get a remanned window motor for the car and it was the same brand as OReilly and Autozone, just rebranded as a Napa part. :doublepuke: Really a shame as I used to trust them to have better parts on the whole.
  14. SlickGTP

    Bumper Guard

    Looks like it was made for the later style bumpers. Would probably work with the early style with a little modification.
  15. SlickGTP

    Cab rear corner moldings

    I've got some for an older GMC that I ripped off a junkyard truck thinking someone might want them one day, but they're the taller ones. Not sure if they'd fit your application. :banghead:
  16. SlickGTP

    Bed Mount measurement and a Headlight Question

    Anytime... Glad I could help. :cheers:
  17. SlickGTP

    Bed Mount measurement and a Headlight Question

    Hard to get an exact measurement, but it looks like 2 15/16" to 3"...
  18. SlickGTP

    Bed Mount measurement and a Headlight Question

    I'll try and get a measurement after the kiddo starts her nap, but can't make any guarantees...
  19. SlickGTP

    Love My New Square Stepper in NC

    Very nice find there... :cheers:
  20. SlickGTP

    Steering box adjustments

    Well... I did it in conjunction with all new steering linkages and such, I noticed visually the box reacting better to inputs from the steering wheel. Overall the truck felt a lot better, but I'm chalking it up to the whole system being refreshed. Now I can go down the road without a...
  21. SlickGTP

    Steering box adjustments

    I rebuilt mine without any issues... I also made sure I read the directions, a few websites, and found a few youtube videos to watch many times before I attempted it though. It's something I would take my time with and make sure it's all operating correctly before I took it out on the road.
  22. SlickGTP

    Wire Identification

    The vacuum port off the back of the carb/throttle body is for the Vacuum Booster for the brakes. Hard to see what your pointing to, but if it's a thingamagig coming off the intake manifold behind the carb/throttle body, then it's a vacuum manifold for various things that need a manifold...
  23. SlickGTP

    Custom Tie-Down Anchors

    Nice job... I like the concept a lot. :)
  24. SlickGTP

    What have you done to your square lately??

    Finally got the underside of the bed floor undercoated and back on the truck... Now for some primer and the I get to reassemble.
  25. SlickGTP

    factory 3-point seatbelts

    The only way to know for sure is to pull the b-piller trim panels off and see if there's a plug underneath. If there's a plug, pull it and you might find the blind nut where the factory belts bolted to. My '73 has the nuts for mounting the 3pt belts even though they weren't offered until I...

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