Yes they are extremely rare. Probably the rarest of the body configurations. Then to find one with a power seat and fog lights is even tougher. Are you looking to buy new only? I have a 2017 that I would consider selling that has 7800 miles on it. Black in color. I am in MN though. It got stored last winter. I haven't driven it much but have been considering buying a sports car instead. PM me if interested.
hirdlej replied to Zane's topic in The NewsroomMy 2015 Silverado was so bad I went through 4 rear differentials before I had one that worked (didn't whine) in less than 2300 miles. (no that's not a typo).
hirdlej replied to Zane's topic in The NewsroomWow, the rear differential is that bad in the 14-18 trucks that they only used it for 4 years before redesigning it again. Hopefully this will solve all the manufacturing issues they had with the previous ones.
The last time I tightened up the backlash on a rear differential, it went out about 20k miles later. Once the gears have taken set, I would advise not changing backlash or making any other adjustments. Maybe you'll get lucky, I guess I would advise just be careful.
If I didn't know any better, I'd think I was looking at my truck. Indeed the black reg cab, short box GMC SLE trucks are hard to find. Especially the ones with the power convenience package (power seats, fog lights, etc). I live in MN and drove to Boise, ID to get mine from Dennis Dillon. Everything was going well until I got there though and they changed the price on me. That's a whole different story though. It's hard to beat the looks on these. Probably the best looking GM fullsize truck on the road. I also agree, I think the 3.42 trucks with the 5.3L in this body configuration are the fastest combo out there.
I don't know how much more premium is in your area vs 87 but in MN it's only 20 cents more a gallon. 20 cents times 20 gallons (at fillup) equates to 4 dollars. I would just spend the $4 at each fillup and be done. I run 91 non-oxy in all my stuff since I don't like ethanol touching the fuel components of my vehicles.
I still contend it has to do with an unbalance of the firing of the engine. Not the firing order but at a low speed there's cylinder pressure being bled off, weak spark or an imbalance of fuel making its way into all 8 cyls. Is it fuel? Valves not seating? Rings? something related to AFM? The lower the engine speed, the more sensitive an engine is to any flaws in operation. The first test would be a leakdown and compression test of all 8 cyls. If those were good I would flowmatch the injectors. If that's all fine then I'd be looking at spark. Maybe it has something even to do with the cam lobes on 4 of the cyls being different than the other 4 (AFM camshafts aren't symmetrical)
I plan on doing mine in the driveway. My local dealer I wouldn't trust with an air filter change so that's why I'm just going to do these myself. I plan on pulling the fender liners then loosening up trans mount, both motor mounts and I haven't decided if I should remove manifolds or loosen up the y-pipe. I'll probably do manifolds since I don't have a hoist but that's no big deal. Where would you suggest jacking the engine up by? My truck is 2wd. I'd love to see a video if you made one!
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