They ride great but are expensive to replace. Mine also has autoride which is the electronic or active shocks. Drive to long with out fluid in it and that will need replacing which I learned the hard way. If it is 4 wheel drive, the transfer case can develop pin oils in the rear housing half from the oil pump rocking back and forth.
It is slightly different than a 4l80e in that it has been modified that handle the extra torque from the big block (455 flbs). The transmission is a 4l85e and is strong. The engine does burn a quart of oil every 1,500 miles and you can hear a slight tapping noise on start up from piston slapping that is very common on these stroked big blocks (the pistons are the same as a 454). On range, my truck has a 40 gallon tank, well two tanks actually, one above the spare tire that feeds into the larger main tank which I am sure is standard on the 2500. Around the lake and hills towing I average around 9mpg. I have been getting at best 13.5 mpg but average 11.5, towing was best at 12 on the highway at 55 but quickly falls as speed increases. I've had it for five years now and have 230K on it. I have a 2500 03 suburban with the 8.1 engine and love it. In my price range, I don't think there is a better bang for the buck for tow vehicles. I'm mainly looking for a used 'Burb that has some maintenance records / receipts just so I know the history. Luckily, for the most part, rust is not an issue on vehicles around here unless brought for out-of-state. Yeah, I've only seen a few 3/4 Ton pop up here in my area. Thanks for taking the time to give a run down of your experience. We are probably going to try to find a suitable replacement a couple states south. 3/4 tons are hard to come by used and I just can't deal with the rear end issues that the 1500s have. We run heavy duty tires on this truck (60 psi) and I think that helps out the gas mileage a little bit.ĭue to the rust we are starting to look at a replacement. Typical spots - bottom of doors & wheel wells. Living in Michigan, this is a never ending battle and some really tiny rust bubbles are starting to grow at an exponential rate. This is a very poor design in my opinion. I believe this to be an issue with the vacuum line system. The AC was repaired by the dealer last summer, now the heat is acting up. We are very happy with this truck, however, there are some issues arising. We have not noticed any oil consumption issues.
Have not looked at it yet, but am suspicious that the torque convertor is failing. Truck usually outlasts our liquid capacity. The truck is fast and has plenty of power. Ours has the captains chairs in the 2nd row which makes it nice to use the 3rd row (easier to get back there). Even with the 3rd row seat up, there is a lot of storage room. Our tow vehicle is a 2002 3/4 ton Suburban with the 6.0 L motor. I heard the 8.1L got a more stout transmission behind than the 6.0L. I know MPG for the 8.1L will be 9 - 11 and the 6.0L 11 - 13.
Relatively small fuel tank = short range Reports of the 8.1 being an oil consuming machine I was wondering if any of TMC has owned one of these guys? Pros / Cons? I loved the pulling power of the Cummins, but I had a Regular Cab and the short wheel base was nicht so gut leaving me uncomfortable at times. I am in the market for a new Tow Vehicle since ditching my Dodge Ram 2500 CTD.
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