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  1. 7

    Excess Rear End Backlash

    Wonderful haha.. the gear do have slop. I rocked one of the wheels back and fourth and could see the slop and hear the slop when I had the cover off. I can confirm, there is spider gear slop. As for the pinion bearing... I watched videos on that this morning as I wondered that myself. This rear...
  2. 7

    Excess Rear End Backlash

    I’m not too worried about needing new gear fluid haha. Yeah the spiders have slack. When I had the driveshaft out, the pinion spun very smooth by hand, it didn’t hang up or grind. I would assume a person put pinion bearings in when they put the new gear set in... can’t imagine that they...
  3. 7

    Excess Rear End Backlash

    Relative to the howl that comes with speed (not at all dependent upon in throttle or decel)... Might I add that originally I did the differential service because the pinion seal was leaking and the pan gasket was seeping and I wanted to address both. The pinion nut was siezed and could not get...
  4. 7

    Excess Rear End Backlash

    Oh wonderful haha... yeah, unfortunately they are on the loose side. I even considered welding them up and making a locker because I couldn’t figure out the slop while it was open. I talked myself out of it based on other wear that it would cause by locking the axles.
  5. 7

    Excess Rear End Backlash

    Full disclosure, I did not count the teeth, but when I looked up the number, it came up with 4.10. I should have confirmed. It turns about 3,500 rpm at 60 ish mph. I have it buttoned up and new lube in it. So I believe the gear set was done in 2007 along with the GM engine. “A” previous owner...
  6. 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...
  7. 7

    Are my secondaries working? (Video)

    Found “A” solution, not sure if it was the problem.... The 4 barrels open 100% now. I am finally able to hear the famous moan of a Quadrajet. Even at full throttle, the rod was NOT long enough, so I stretched the angle out until it opened them. Before: After: **I do NOT recommend bending...
  8. 7

    Are my secondaries working? (Video)

    Just ran out and messed around. The secondary lockout is NOT obstructing the secondaries. I also pivoted the secondaries from that pin you see, and they fully open, so it’s not a situation where the butterflies are hitting the intake. How do I adjust the linkage on the drivers side? That...
  9. 7

    Are my secondaries working? (Video)

    Thank you all, I thought something was up.... I’m really hoping someone didn’t put the wrong intake on this thing. I didn’t think to check the lockout on the passenger side. Also, those back secondaries and pretty wide, they may not have clearance to open now that I look at my intake. I’ll go...
  10. 7

    Are my secondaries working? (Video)

    Makes sense. Why do the back flaps move a little then? They move ever so slightly by the linkage.
  11. 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...
  12. 7

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

    I’ve been on the hunt for some and I just can’t find any. I have a “Heavy Half” (GMC version of Big10) and mine has the 15x8 rally wheels.. who knows if they are the original one after 41 years.
  13. 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...
  14. 7

    Wheel Adapters

    Thank you all for the info. I definitely appreciate the advice and precautions offered. I will definitely consider them, now not sure what I want to do.
  15. 7

    What color is this Green? I need some help

    The saddle color was all done by me... this is not factory. It was an all green interior originally with a tan vinyl seat (under the seat cover). It was an old farm truck and the interior got trashed on. I just took the opportunity to veer into a saddle color instead. Only ran me about $40 to do...
  16. 7

    What color is this Green? I need some help

    See the metallic aspect is what pushes me towards shamrock green. I agree with you. It’s got a blue hue and I am a total fan. Thank you so much. I’m about to buy a set of used doors, so I can paint those and see how it matches up on a test car or something before I paint them. I really like...
  17. 7

    What color is this Green? I need some help

    Here are better pictures. It is clearly metallic green with a hue of blue in it. Being ‘metallic’, I am thinking that this was a Shamrock green truck originally. I am not a fan of straight up green personally (ironic...) but the blue green is a totally different game, I’m a total fan and...
  18. 7

    One side sagging

    Same issue here, but on the passenger side. Mine sits down around an inch lower on the passenger side with no air in the air shocks that I installed. I unplugged the drivers side air shock and aired up only the passenger shock 2 nights ago and it leveled it out until I fix whatever is going on...
  19. 7

    What color is this Green? I need some help

    Here are a few examples of code 43 with different names for 1979: “Bright Green Poly” https://images.app.goo.gl/9fwoLDBSvbga1Zf98 “Shamrock Green” https://images.app.goo.gl/mBueBfpked9xzZ7T8 “Bright Green Metallic” https://www.uniquecarsandparts.com.au/paint_color_reference_gm_commercial
  20. 7

    What color is this Green? I need some help

    That’s where I found Code “43” but I don’t know. I have had a heck of a time finding the same color truck as mine online and I finally found one that resembles my original painted areas very well. I just need some help. Seems like there are a lot of variances in green... some could also not be...
  21. 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...
  22. 7

    Headers with AC??

    I had an 84 Chevy el Camino and the compressor wasn’t working, so I removed it. You could always try to find one at a junkyard if you really want it?
  23. 7

    Headers with AC??

    I agree with you.... I want to remove it, but it works... so I feel bad doing that. It weighs a ton, I’d rather remove it, but it’s charged up and can’t just take it off. For me, AC on old vehicles isn’t my style. Running her open headers was fun though!
  24. 7

    Headers with AC??

    For those interested, I tried a bracket from Jegs that I was hoping would work for this compressor style, and it did. This is what I bought. https://www.jegs.com/i/JEGS/555/30782/10002/-1 It mounts like so: I have the AC compressor mounted up again, I just have to buy a new belt for it.
  25. 7

    Wheel Adapters

    I don’t think I had to pound them on. How much did yours run, price wise?

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