Supercharged111
Truly Awesome
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- Aug 20, 2015
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If that Sub had the Allison there'd be a bigger difference.
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They both are nice, both tow well. No real up or down to either one. just some differences. I had a 95 G30 van with very low miles. It was great for my needs space wise, but it was not up to pulling out of town, mostly it was the gear ratio spacing on the 4l60e, the engine after some mods and tuning did OK, but still not like a big block. So I moved on to the 96 7.4 C2500. Pulls fine, super clean, but I can't get much stuff behind the seat. Being a pickup it's got advantages for yard work, but the canopy is not really secure, even with the flimsy locks they have. That is a worry when spending the night at a hotel with race car or dyno support equipment in the back. The Suburban may be a good compromise, it's the best towing out of the bunch, but not by a lot. A hotel scavenger will have to work a lot harder to get into the back of the Sub, but I will not sell the truck, or the Suburban until I spend more time with both.I'd have a REALLY hard time letting go of that 96 considering how clean it is! What is the upside for the move? I can't picture how it's an upgrade to let go of the 96 in favor of the 01.
(totally worth it)
I got the 99 2500 (10k towing cap) because I wanted the higher towing capacity than the 98 1500 (6k towing cap) (my trailer if I load the front deck max's out at 7100 lbs)
The 03 2500 has a towing cap of 12k and rides nicer than the 1500.
I have no regrets going to the GMT800. I like the interior better, I think it looks nicer, and it will be much easier to swap to a Duramax if I get that hair up my ass.
The 99 pulling my camper (5100 lbs loaded) up a 7 percent grade....I would be lucky to hold 35 mph at the top if I started out at 65. Fuel mileage estimate according to HPTuners was 3 mpg.
The 03 pulling ....I buried the pedal and was at 75 mph by the top, according to the cluster I was getting 2 mpg. (totally worth it)
That is a bigger difference towing than I noticed. Were they both 4.11 gears? I have a 6000 lb mobile dyno and trailer and we are about 30 minutes from a 4-6% grade up the Siskiyou summit. The grade varies, 6% in the steepest section. Its long though, about 40 miles of very steep up and down in that section. The speed limit is 55. Both trucks had no problems doing close to that in the middle lanes, although the 454 was working harder. On the down hills the suburban had the advantage brake wise too. That is one of the reason I have a big block 2500. North or south there is some pretty big hills. Both mine are stock and are geared the same, with close to the same tire, only one tire size apart, 265 vs 245. I think the truck may be less weight compared to the suburban, but never checked. I do like the GMT 800 though. This was the only one in my price range so far with low miles. I don't like the air assist shocks. I would rather have just plain old Kybs on there like my truck. I also noticed the Sub has one less leaf in the spring pack. Probably why they had to add the air shocks from the factory. So an extra leaf and regular shocks may be in the suburbans future if I keep it.
Either one will tow 6000 lbs up the steep grades without any trouble. So that is not a direction I need to go. No use going off on another tangent project.