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  1. Daveo91Burb

    What is this switch called?

    The one on the bottom of the pic is the regular brake switch. Normally open, triggers the brake lights and cruise cancel when closed, i.e. when pedal is pushed. This is what comes up when you search for a "brake light switch" on RockAuto or a parts store. The one on the top of the pic...
  2. Daveo91Burb

    Headliner from RockAuto?

    Today I discovered that RockAuto carries headliners for squares. Plastic instead of cardboard/fiberboard, similar to what LMC covers. The one I was looking at was uncovered - you could paint or cover as desired. I was thinking of just painting. I was all set to pull the trigger based on the...
  3. Daveo91Burb

    Need a switch to tell computer when in 4-low - any ideas?

    This has to do with my quest to upgrade from the first iteration of 4L80e PCMs (7060) to the next generation. (7427) Without going in to too much detail, the first gen used three speed sensors: trans input, trans output, and t-case. The PCM knew it was in 4-low if it saw a difference between...
  4. Daveo91Burb

    Steering gear rebuild - FAIL

    Over last fall/winter I rebuilt a steering gear from my ‘90 parts rig that I had years ago. It was challenging for sure but I followed a YouTube vid from a guy that seemed like he knew what he was doing and when I put it together everything seemed to fit into place properly and function seemed...
  5. Daveo91Burb

    4L80e Swap Build Thread

    Starting a build thread for my swap to a '97 4L80e from a 3/4 ton 4x4 burb in place of my original '91 4L80e. Reason for a swap: later 4L80e had some mechanical and electrical upgrades, but the main reason is PCM. '91-'93 80e's used a very specific PCM that has virtually no support in the GM...
  6. Daveo91Burb

    Need advice - rear defroster repair for roll down window

    My first attempt was a fail.... When I converted to tailgate several years ago for the first one or two years rear defrost worked great. (Barn door windows also had defrost). But, I must not have routed everything perfect because eventually there was a strain failure and the positive side...
  7. Daveo91Burb

    Like new AR23 rims and other exterior dress up

    Found some sweet American Racing AR23s that had been in storage for years at a tire shop. They're used, but only slightly. Great shape and I'm happy with the look. The one problem is the push-thru center caps are loose and rattle. Suggestions for some type of spacer material I can put behind...
  8. Daveo91Burb

    4th small hole in late model clusters?

    Was it ever used for anything in the late model squares? Or was it always blanked? The reason I ask is I have my cluster all taken apart right now and I noticed there are three holes for the typical light socket used for gauge lighting, turn signals, idiot lights, etc. And my cluster was...
  9. Daveo91Burb

    GMT 400 Hydroboost System in a Square?

    I'm parting out a '97 3/4 ton burb and it's got Hydroboost. Probably will just try to sell it, but just curious if it's possible to retrofit to my '91 Burb. Would the booster unit bolt to the firewall and connect to the pedal rod OK? And then for the pump - the '97 serpentine setup is...
  10. Daveo91Burb

    help me identify these 8 lugs

    The 3/4 ton '97 burb I recently bought for it's later 4L80e and various other parts has three (and only three) of these 8 lug, 8 hole, 16x8 rims that I kind of like and may want to use on my '91 burb. There are a few issues that need to be solved first though, like getting the fourth one. Any...
  11. Daveo91Burb

    '91 3/4T, 4x4 Burb Update

    Hi all, it's been a long time since I've posted, probably since last fall. But I haven't done much to the burb since then - plans in the work for some upgrades. Warning: this will be a long post, but my idea in posting is to help those that may be wanting to bump up displacement or HP on a...
  12. Daveo91Burb

    rear wheel antilock (RWAL) system - ditch it?

    My brake light stays on continuously. I've diagnosed it just enough to know for sure it's the antilock system. i.e. light goes out if I disconnect the brake controller by the M/C. Also, light becomes brighter when I engage the parking brake. Good diagnostic and general info here...
  13. Daveo91Burb

    Interior wood grain trim removal project

    Got all my wood grain stuff removed and am pretty pleased with the results. No offense to anyone that has wood grain and likes it (if I had a round eye I’d probably have tried to keep it) but I’ve never liked the late model Silverado (burbs only?) wood grain on the dash. My ‘89 K5 Silverado...
  14. Daveo91Burb

    driver's door power window regulator problems

    Driving down the road yesterday, rolled up the window and it clunked at halfway point and wouldn't go any further. Got the door panel off tonight and sure enough it was out of the side felts, both front and rear. Jockeyed it back into place and now it seems like its in the tracks, and it works...
  15. Daveo91Burb

    New 383 high oil consumption

    I’ve been hoping for something simple for a while now, have actually been in denial. But I can’t deny 1/3 to 1/2 quart in 300 miles any longer. Funny thing is plugs do not look oil fouled to me at all, and the (hot) compression is good and consistent in all cylinders (approx 180 at three hits...
  16. Daveo91Burb

    Steering box leaking

    I'm 95% sure it's leaking at the input shaft seal. It's getting worse too - there was probably a quarter cup of fluid on the concrete after I drove it yesterday. I've tried stop leak a couple of times now, doesn't help a bit. So I have an extra box from a '90 3/4 ton 4x4 burb laying around...
  17. Daveo91Burb

    Weird brake pad wear

    Doing front brakes and noticed some weird wear. It's just this one pad -- passenger side, outboard position, wearing much more on the trailing end vs the leading end. Down to the wear indicator and making noise. Last time I did brakes I replaced pads and calipers, but not rotors. This time...
  18. Daveo91Burb

    Refresh a gauge bezel?

    so I’ve never liked my fake wood grain gauge bezel (or the dash and door panel trim) that they put in the ‘90 and ‘91 Silverado burbs. But today I found this bezel at the Portland Swap Meet and picked it up for just $10. Any tips on a refresh for these? Id specifically like to clean up the...
  19. Daveo91Burb

    Mixing bowl air cleaner transition piece for TBI

    HyperTech makes something for TBI called the Power Charger. Basically eliminates the "choke ring" that goes around the injectors and provides a support for the air cleaner (and also creates a lot of restriction). Got the idea for a home made one on another site - here's what I did. Bought...
  20. Daveo91Burb

    TBI vacuum leak

    I’ve discovered a vacuum leak between my TB adapter and intake manifold. I’m using the adapter that came stock on the early TBI big blocks (GM didn’t come up with a TBI specific intake until 91 - before that they just used a q-jet one with this adapter). The OEM gasket at that interface is very...
  21. Daveo91Burb

    TBI to spread-bore manifold adapter

    This adapter allows use of stock (or modified) GM TBI on a spread bore or q-jet manifold. I bought it for my vortec 383 but I ended up using the adapter that GM used on the early 454 TBI. The GM one is taller and has a vacuum port that I needed. But this is a well machined unit that I would...
  22. Daveo91Burb

    TransDapt TBI Spacer

    Anyone want one? I have one that fits the bore of a 350. $10 plus shipping. Paypal is best. I'll look for the screws that came with it, but not sure I have them. Definitely don't have the two gaskets...
  23. Daveo91Burb

    More starter woes, or is it?

    My direct drive Delco (early 70's vintage, I believe, with a cast iron nose) is working fine about 90% of the time. The other 10% I get nothing at all, I don't think I'm even getting a solenoid click. At first I thought I was getting solenoid click, but I think I'm hearing my aux battery...
  24. Daveo91Burb

    4l80e leaking and draining

    I noticed a lot of fluid on the floor about a week ago, haven’t driven it since because of that. Kept leaking the whole time and noticed it was dripping off the the back of the pan gasket. Last night I finally got to draining the pan (it has an aftermarket plug), but I didn’t drop the pan...
  25. Daveo91Burb

    Found a np 205 at pick-n-pull

    was at the yard today looking for some TBI parts and saw an 70s or early 80s ( a lot of stuff was missing - couldn’t tell) 3/4 or 1 ton 4x4 square. Crawled underneath and saw a th400/205 combo. Meant to get a quote on the 205 when I was paying but forgot and they were wanting to close up...

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