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Chevy Silverado/GMC Sierra's w 8100/Allison



  • mgdvhmanmgdvhman Posts: 4,162
    I like the sunset orange and have seen it look many colors in different lights....

    fooled me

    - Tim
  • Congrats on the new vehicle. I've posted several times whinning about the wait for delivery of my 8.1/Allison. I ordered in early August. My dealer advised me my truck was shipped on January 16th, and delivery should take 14 to 21 days to Montana. I have a VIN but can't find the truck at either the BNSF or UP tracing sites. (If you want the site addresses let me know.) I ordered white with 3.73 gears with no locking differential. I am hoping to improve on the 9.0 MPG test results the major magazines have posted. I avoided the locking differential because I feel they have a tendency to fishtail on icy roads and we have tough winters in Montana. I also ordered new white wheel flares from my dealer to replace the black. I'm hoping the truck is a midyear year model with white so I can save the $290 cost. What's the deal with the toolbox? I haven't heard anything about any free stuff with the truck.
  • On your 1/17/01 post you suggested pushing for a $1,000 gmc loyalty certificate from GM because of the long waits. I have never heard of a loyalty cetrificate and have bought five new GMC trucks. Have I missed something along the way?
  • n75v111n75v111 Posts: 243
    Go back here and review trw3's post 864. Further discussion on topic New/Sierra etc post starting at 270-342 etc.

    I think you have to push the distric rep hard ball style and 'build your own case' but GM does give them out. waiting to see also!!

  • mth1mth1 Posts: 12
    I have taken the Welds off and put the factory wheels with the 285's on. Just thought people would like to see how it looks. I kind of like the factory wheels. Let me know what yall think.
  • n75v111n75v111 Posts: 243
    what the upper right area is on the radio - looks like some sort of display but not sure.

    Also thought LT CC's were to have Climate Control - Did I miss that or could you zero in on those two areas to show more detail??


  • modvptnlmodvptnl Posts: 1,352
    also drove an 8.1 allison. It was on display along with the Duramax and 6.0. I only drove the 8.1 and thought it had some power. The trans was VERY NOISEY. A lot of whines and other high pitched sounds. My son said it sounded like a Supercharger! The 8.1 had 4.10 gears and I was hoping for some funny car type burn outs. It did chirp the tires but really didn't light 'em up. I thought the trans shifted as smooth as other autos, I was expecting harsh shifts.
    The truck I drove had the lowest level interior, vinyl seats, no carpet. A higher level trim may have made the trans noise less intrusive.
    Hard to compare to my Super Duty because mine is a 4WD 5speed V10. I am interested in driving like compared trucks for a true evaluation.
  • mgdvhmanmgdvhman Posts: 4,162
    I like the poilished 2500 wheels also...but thought 285's were a little of a sqeeze for those wheels?

    CC's do have climate control as an least on LS/LT..

    Allison Noises are least until warmed up.....Salesman even said they recieved a video about just that..and that it's a truck tranny and it's gonna make squeals and whines....I said they should put the video in every glove box..

    - Tim
  • mgdvhmanmgdvhman Posts: 4,162
    Damn Todd....what did ya do?..change the wheels in teh lot and take pics the same day and not even move the truck?


    I can see the climate control no problem.......

    I thought the stock wheels would make 285's wear too too much of a curve on the tread?


    - Tim
  • mgdvhmanmgdvhman Posts: 4,162
    I see from a post they are 285/75/16's....any trimming or lifting to make them work?

    - Tim
  • obyoneobyone Posts: 8,065
    Height would be no problem. The front and back of the wheel well is where the problem lies if not I would think 305's would be able to fit. The stock fender flares would have to be mutilated.

    Nice truck!! Stock rims look good.

    Can you imagine them with 235 or 245's?
  • mgdvhmanmgdvhman Posts: 4,162
    as a 2002 Sunset CC LT SB HD is what I am getting!

    ....if 285's wear fine on a 6.5 inch rim....I'll get 'em....if not....245's it is...

    going from 245's to 265's is like going from 265's to 285's.....what's the point?

    (Sorry Ryan)

    - Tim
  • mgdvhmanmgdvhman Posts: 4,162

    - Tim

    ....Front ain't too's the rear!
  • obyoneobyone Posts: 8,065
    on the rear was over 20". Ugh. Looks like a Dodge with the miniture tires.
  • mgdvhmanmgdvhman Posts: 4,162 the hood bulge got a little larger.....ain't no where near as ungly as a dodge!....heck....ain't even ugly at all!

    - Tim
  • texaszachtexaszach Posts: 119
    You have to go with what will work and frankly, I am a huge fan of the factory wheels, the truck still looks awesome! I can't tell from the pics
    if the 285 sidewalls are bulging excessively on the stock rims. Are the bigger tires laying down a flat footprint?
  • Hi All,
    Well after reading the Motor Trend article and looking at mth1's pictures of his truck the anticipation is killin' me. I'm like a kid waiting for Christmas to finally get here. I checked the BNSF site with my VIN # but it came back "Not Found". The truck may be shipped on a different line out here to the east coast.
    The deal with the free toolbox was an offer that Chevrolet is making to commercial customers.
    I will be using my truck in my construction business so I was elegible. The saleman said that in order to qualify you have to have have some sort of trade license. I have a Commercial/Residential builders license so I was able to get it.Those diamond plate boxes only cost about $300 or so, but what the hey free is good.The real good news is that I will eventually be able to write off 80% of the cost of the truck as a business expense. My tax guy writes off a certain percentage every year for 3 or 4 years.
    mth1- Nice lookin' truck... I almost like the stock wheels better than the Welds.Did you have to adjust the torsion bars and trim the air dam to get them to fit without rubbing? What about reprogramming the speedometer and changing the shift points?Where did you get the Hypertech unit? I want to put 285s on as soon as I get my truck so any info would be appreciated. I ordered mine with the stainless wheels because I was planning to change them to aluminum asap, but after hearing about your vibration problem I may keep the wheels I get for a while until I can locate a set that don't cause problems. Let us know how those 285s work out on the stock wheels.
    The other day someone here asked what equipment/options I had ordered on my HD, so here it is...

    2500 HD LS 4WD Ext Cab SB 8100/Allison/4.10
    Locking Differential,Electric Shift,Skid
    Plate,Trailering Package,Marker
    Lights,Deep Tint Glass,Pewter Metallic

    The dealer will install a sliding rear window, under-rail bedliner, TracRacs,and the toolbox.I ordered this truck on October 20 and the salesman swears that it was built last week and is on it way right now.I should have it in less than 2 weeks... I can only hope that he's right.

  • obyoneobyone Posts: 8,065
    Hypertech hasn't come out with a reprogrammer for the '01 HD as of yet. Not sure when it will happen as they are working on one for the '01 1500. Apparently, they need to get their hands on one to do the testing. If their luck is anything like I've read on these boards, a reprogrammer for the new HD's are way down the road.
  • Dogman,
    According to my dealer, my 8.1 was shipped on 1/17/01. I have the VIN and have tried the BNSF and Union Pacific sites and keep coming up with a "not found" message. Hope both of ours are actually on the way.
  • Thanks for referring me to the posts regarding the loyalty certificates. I don't access this site every day and often miss important posts. I plan to fire off a letter to the regional GM rep. Even if I don't get a certificate, I'll feel better about venting. My truck ordering experience with my last two GMC's has been less than timely. In October 96, I ordered a new 3 door Z71 and, due to a GM strike, ended up taking delivery in June, 1997 - almost 8 months. I wasn't upset, I just figured there wasn't much GM could due. I ordered the HD in early August, changed equipment twice to accommodate rumored GM part shortages before the order was accepted, and am now hoping for delivery in early February - about 6 months. My 90 Z71 took three months while my 88 Ford XC, shortbox (first year made) took six weeks. If the trend toward longer and longer waits holds into the future, if I want a new 2003 maybe I should order now. I wouldn't be so cynical if GM would release a little more information so their customers could better plan their purchases.
This discussion has been closed.