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  1. 7

    EXCESSIVE oil leak - Burning off exhaust, but from where?

    Hey guys, I have a 350 that I can’t stand to drive anymore. I have an excessive wave of burning oil come into the cab after every acceleration. Problem is, I am lost. I cannot find my leak. I’ve done valve cover gaskets, but it is still there. Bellhousing is clean, I suspected it might be...
  2. 7

    350 Running warm

    Hey guys, I have a Vortec 350 in my 1991 squarebody suburban that runs a touch on the hot side. It runs about 210 degrees, but at long red lights it tends to get peak out at about 215, never anymore. The radiator looks to be new, the fan clutch works, I am also running a shroud. My 1979...
  3. 7

    Fuel pressure regulator mount ideas needed

    Hey guys, I currently have a fuel pressure regulator mounted to the firewall above the passenger side header. It’s been making me nervous, is this okay or should I look into relocating it? If so, any ideas? Thanks !
  4. 7

    Need help with identifying my door year

    Hey guys, I picked up a set of doors that were off of the truck when I bought them so I have no idea what they are off. I first thought they were 81+, but I bought window vent seals for an 81+ and they do not fit they are 2 piece riveted, not 1 piece), definitely has the pre 81 vents. These...
  5. 7

    Anybody use classic industries

    Hello all, Looking for opinions/input on seat covers. I came across classic industries and am thinking about doing a dark brown seat cover from them, but I’m also consider the tan. My question is if anyone has run these covers, how do they fit/hold up? I’d also like to hear some of your other...
  6. 7

    What do I need to do with my floors?

    Hey all, long story short, I bought carpet for my truck, tore up the old carpet and found bubbling paint and some exposed rust so I beat the devil out of my floors with a scew driver and a hammer and I found some unfortunate news… floors don’t look good after some of my abuse… The whole...
  7. 7

    Poverty Caps Keep Rusting

    Hey all. I picked up a set of 3/4 ton rusty white poverty caps and wire brushed them to bare metal. I wanted the polished poverty caps so I made them myself, but I’ve been fighting rust on them. I clearcoated them and then they rusted out. I wire brushed them down again and bought 2k clearcoat...
  8. 7

    Cam Break In - Tips for Avoiding Wiped Lobes?

    Hey all, I have wanted to cam one of my vehicles for some time, and have finally decided to do it to the 1979 Sierra. I bought a Comp Cam Thumpr 279/297, 0.479"/0.465 and Comp hydraulic flat tappet lifters for my 350 that has about 23,000 miles on it. I am paranoid about wiping a lobe. I wanted...
  9. 7

    Broke another flexplate, what am I missing?

    Hey guys, need some advice. I bought my truck with a broken flexplate so shortly after buying it, I put a new one in with the assistance of a trans tech friend to make sure that it was done right. I went ahead and put a new converter in since it was going to be separated anyways, and had no...
  10. 7

    Which wire do I need to tap into?

    Hey guys, I am attempting to wire in a kill switch to the starter solenoid, but needed some opinions first. Which of these wires from the ignition switch are of interest? I was leaning towards that yellow one, but I am not sure. Also, a side note.. what’s up with these two plugs that are...
  11. 7

    Coolant tank keeps puking coolant

    Hey guys, I’m baffled. Last 5 times or so that I’ve used my truck, it pukes coolant out of the resivoir. It isn’t running hot, the son of a gun barely gets to 150 degrees. It doesn’t boil, it just expands and spills out onto the ground. I have lost probably half a gallon of coolant total, but...
  12. 7

    Are any sway bar mods needed after lowering?

    Hey all, I stumbled across “sway bar brackets for lowered trucks” and it got me wondering. I lowered my 79 longbed and I didn’t address anything sway bar related. Am I needing to change the bracket for the sway bar? It’s a 3” drop up front over stock, nothing I thought was too crazy...
  13. 7

    Setting a timing tab?

    Hey all. I have 2 timing indicators on my 350, both are apparently wrong? 1 is straight above the balancer, the other is about the 2 o’clock position on the balancer. I bought a piston stop tool to see if my balancer slipped, but my balancer mark is on TDC. The Balancer is an 8” diameter and...
  14. 7

    Rear End Rebuild?

    So someone had done a rebuild on my rear end converting it from 3.42 to 4.10’s (Still an open carrier). When you would put the truck in gear it would BANG, found out it was slop in the spider gears From side to side. I put a mini spool in and the bang is completely gone. Problem that I still...
  15. 7

    Kill switch ideas?

    Hey all, I’d like to put a kill switch in the old rig and wanted to see/hear your ideas. I guess my biggest concerns; and reasons for wanting a hidden kill switch, are because of theft, but also in the back of my mind are potential electrical fires. Any of you running kill switches?
  16. 7

    Transmission or Tailshaft humm??

    Hello, got a question. I am experiencing a humm/howl at 45 that fades in and fades out about 50 mph. I originally thought it was rear end, but it seems to not be. I got the truck off the ground and ran it through the gears and I went around with a stethoscope and it was QUIET. Quiet at the...
  17. 7

    What’s wrong with my axle tubes?

    Had a rear right wheel bearing go, so I tore into it. I have 2 different axle tubes and 2 different axle seals... What happened here?? Drivers side: Passenger Side: (2 Collars...) Here are the axle seals: I had this same thing on a 1984 Chevy that I had. Axle seals were leaking on it and...
  18. 7

    Fitting a 76’ Grille in my 79’?

    Hey all, picked up a grille cheap enough that I wouldn’t be disappointed if it ended up as a wall hanger, but I’m going to give it a try in the 79 if I can. I am running into clearance issues with the trans cooler and the hood hinge support. The depth of the grille fits up top, but the slant of...
  19. 7

    Steering Squeak

    Hey all, got another strange problem with the old truck. Been hearing a squeak at full lock, didn’t think much, but I went to the carwash to clean the undercarriage and now the steering is making this awful squeak and is even hanging up. What the heck is this??? Is it rack and pinion?
  20. 7

    Excess Rear End Backlash

    Hi all, I may have 2 situations, not sure yet. Basically I was doing u-joints and decided to service the rear end. I noticed that there is a newer ring and pinion (4.10 gears) and new fluid.... but there is some slop in the spider gears. This results in a clunk when going into reverse which am...
  21. 7

    Are my secondaries working? (Video)

    Hey guys, I apologize if this is a stupid question or if I am clearly missing something, but I opened the air flap on the top and fully opened the throttle linkage and the secondaries do not open. I wedged it open for the purpose of a video. Is this normal? I’ve noticed it’s not peppy while...
  22. 7

    Can you run 31/10.5/15 on 15x6 rims?

    Hey all, I’ve been flipping a coin on either 31/10.5/15’s or 32/10.5/15’s on my 2wd 1500. I’m a fan of the dog dishes so I found a set of dog dish 1/2 ton wheels, BUT I looked online days later and saw that it would be unsafe to do 31/10.5/15’s on 15x6 wheels and almost sold them off. Before I...
  23. 7

    What color is this Green? I need some help

    I need help, I am stuck!! So my truck; a 1979 GMC Sierra Classic “Heavy Half”, has been messed with a fair bit.... Cab has been off and a whole new floor was put in at some point, as well as a cowl and roof skin. While everything was apart, they painted it a green that is not 100% correct. I do...
  24. 7

    Wheel Adapters

    Hey all. Any of you running wheel adapters? I want to pull my wheels out of the wheel well a smidge anyways, but I kinda like the 6 lug 8 lug 16” rally wheel tire options. I currently have 5 lugs and will stick to 5 lugs, just wondered if this was something that any of you have done? I plan to...
  25. 7

    Blinkers messed up.

    Hey guys. Sometimes my blinkers work, sometimes they don’t. They seem lazy, as in they either don’t work at all or they blink slow and then eventually stop all together. I re-grounded both the front lights, no improvement, any ideas? This is what it does. Thanks!

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