GMC Sierra/Chevy Silverado 2500 & 3500 - II - READ ONLY

1057 messages, Last post on May 12, 2002 at 4:56 PM

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What is this discussion about? GMC Sierra 2500, GMC Sierra 3500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, Truck

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#989 of 1057 eric by mledtje Nov 28, 2001 (11:55 am)
You won't hurt the torsion bars by adjusting them up. It doesn't change the load on the bars, just changes the static ride height. Essentially, it is the same as putting a spacer under a spring. The spring (torsion bar) is still carrying the same weight. The only chance to cause some damage is when you raise the truck and then take it off road and use full compression of suspension. You can twist the bar further than it was designed to twist. That's not very likely, because the adjustment isn't very much, and the bar has a fair amount of margin designed into it. I raised my truck about 1.5" (4-5 turns of the adjuster) 15,000 miles ago. I really like the increased ground clearance up front. Mike L
#990 of 1057 Thanks Mike by eric757 Nov 29, 2001 (7:39 am)
Thanks, I do go off road to get to my 4-wheelin spots, but nothing extreme, especially with that big truck. It makes sense what your saying about it carrying the same weight. I'm thinking about doing 2 inches. Did you realign your truck after you raised it? If you did was it a 4 wheel alignment or just the front end? I think I will do a 1-1/2 or 2 inch block in the rear also. Thanks again. Eric
#991 of 1057 Eric by ryanbab Nov 29, 2001 (7:42 am)
I Cranked my tbars up on my truck and got about an inch (4 turns). I did get a front end alignment (which is recommended). Ryan
#992 of 1057 Eric by mledtje Nov 29, 2001 (12:04 pm)
I got it aligned, but it was still in specs. I would not suggest blocks in the rear. If you want to lift the back, why not put in Air Lifts or similar? When you raise the front, the truck will be nearly level. Then you can add air to raise the back when you carry a load or simply want more ground clearance. Small blocks probably aren't a big deal, but they are always there. My HD Air Lifts cost about $200, were easy to install and work great. Mike L
#993 of 1057 Tires?? by eric757 Nov 29, 2001 (3:29 pm)
Now for another?? Since cranking the tbars, has anyone put bigger tires on? What kind and what size? I am considering Goodyear MT/R's 285/75/16 or 295/75/16. Eric
#994 of 1057 tires by trw3 Nov 30, 2001 (4:31 am)
BFGoodrich M/T 255/85/16 on the stock alloys 33.3 dia. works great! 01 GMC 2500HD slt cc 4x4
#995 of 1057 Suspension sag..... by markbuck Dec 03, 2001 (1:25 pm)
All suspensions are designed to work best with 1/4 to 1/3 of their travel used up with "static sag". If you crank your torsion bars up to less than 1/4 of the travel, then you compromise handling... When the road drops away (in a bump) then the tires don't travel far enough down to maintain their connection to the road. So, if handling is not important, go ahead, crank them up....
#996 of 1057 dash mount cupholder by y2kgmc Jan 07, 2002 (6:07 pm)
Does anyone know part # and if it is possible to put cupholder in spot below lighter on 2001 2500HD ext cab, the seat mounted cupholders are kinda low..... Thanks Ed
#997 of 1057 Y2 by sonjaab Jan 07, 2002 (7:16 pm)
Heck yea ! Ask over in the silverado topic here...A few guys have done it and have pix and stuff......... BTW: My 01 2500 has been wonderful and plowing snow like a champ since we finally got snow in NY..........Geo
#998 of 1057 GM Customer Service OK With Me by whatsachevy Jan 15, 2002 (7:28 pm)
'01 Chevy 2500HD 4x4 Ext Cab SB 6.0/4.10 Auto Locker - 12,000 miles and only a slight engine knock on cold start-up. Other than that, no problems. I have to admit, so far this truck is awesome (and no, I don't work for GM - I'm actually an old Ford guy - this is my first Chevy product, ever). I did take the truck in to my dealer to register the engine knock. I was told the same story as most that engine longevity would not be compromised. I did note the engine knock concerns on the service follow-up questionnaire that I mailed back to GM in December. I received a phone call last night from GM rep. They asked about my concerns and called me back tonight. They gave me a no-cost 5-year/100,000 mile extended warranty on the engine and all internal engine components. They agreed to replace the pistons when the newly designed ones are available at no cost allowing the extended warranty to continue in effect. Maybe some people should look for another dealer or call GM customer service directly (1-800-222-1020). Personally, I don't think the longevity of the engine is compromised, and was quite pleased that GM took the time to call me and apparently stand behind their product. I have a buddy who has a '97 GMC 1/2-ton that has been through hell and back several times (it has even been buried in a pond with water up to the bottom of the dash). His truck has also had the cold-engine start-up knock since about 5,000 miles. He now has over 90,000 miles with no oil consumption (but he does still have the same knock - it has not gotten worse over time). 90,000 miles on a truck for him should be worth at least 180,000 for a normal person as we consider him to be "above-average hard" on vehicles. BTW - with all this talk of bigger tires, has anyone ever ran Cooper tires? Cooper makes a mud tire that looks pretty aggressive, similar to the BF, but quite a bit cheaper than the BF. I just purchased American Racing 16x8 rims and am now shopping for mud tires (285/75/16). I was wondering if anyone has any experience with Cooper tires and what their opinion of them was.