stutaeng
I'm Awesome
I've seen 2500s with a GVW of 8,400 with vacuum brakes, but every GMT400 Sub with a 350, and 8,600GVW that I've ever seen had Hydro-Boost.
Awhile back I went shopping for an 800/K2500, must have looked at a dozen or more.
Could not find one single one with 4:10s, they all were 3:73s, the ones with 4:10s must be kinda rare.
Ok I suppose for hauling the kids/groceries/cruising, but even the 6.0 needs 4:10s for real work.
Now a Sub with an 8.1 and 3:73s,, I could live with that, they still had a 10K tow rating, the 4:10s bumped it to 12K.
In the 800s the best bang in a gasser is a PU K2500/8.1,, you get the Allison with 4:10s as standard, with a 14K tow rating,, just hard to pass a gas station.
8,400 GVWR? I've never seen those.
Neither have I personally seen a 2500 GMT 400suburban with 5.7 and hydroboost, but that doesn't doesn't mean they don't exist. I think the ones made for the government and fire departments were special, maybe those got that special treatment?
As far as the 800 2500 suburban with the 6.0 and 4.10s, I thought those were not rare. I have 2 of them, a 2wd and 4x4 and they both have 4.10s. I like them. Coinsidently, I only looked those two that I bought on 2 separate occasions.
The 8.1/Allison only came on the Silverado 2500HD/3500. The 8.1 Suburban and Avalanche got the 4L85e, which is still a beast of a tranny.
The truck frames were deeper than the suburban/Avalanche. I don't believe you can fit an Allison down there, without a lot of modification. Only the "Duraburb" comes to mind with that setup, and I think they install body lifts on those?