We've just purchased an '09 BH 3670RL, taking possession next spring. Until then, I've been trying to decide which GM diesel to get, the 2500HD or 3500HD, with SRW, not duals. We plan to use the BH more as a summer cottage rather than full time. We're not planning on doing cross-country trips, mainly keep it at a campground 200 miles from here in northern Michigan that has seasonal sites and winter storage. From what I gather from this thread, the 2500HD should be just fine to get it there and be able to move it when I need/want to. For my usage, I'm thinking the 3500HD would be more truck than I'll normally use. We had a 27' travel trailer, pulled by an '02 Avalanche, up there, but decided to go for more space. Looking for pros/cons, comments.
The difference in cost between a 2500 and 3500 SRW is minimal, if it were me I would go with the 3500HD SRW. The DRW is till the best way to go but if you are totally set on an SRW you should really go with the 3500.
Good Luck
If you want to stay with an SRW, you might want to look into Rickson wheels. They'll boost your SRW ratings to 4500# each, with 19.5" commercial tires. I did this on my Ford F350 SRW carrying a heavy camper. Prior to the Rickson solution, the baddest E rated Michelins I could get always looked low (and I destroyed a couple of rims.)
When I put on the Ricksons, they don't look like they have any weight on them.
It was an amazing difference.
Now, I'm having the tranny beefed up to pull a 3670. That's the last link in the chain, I think (except maybe for an exhaust brake.) I had a Banks PowerPack put on to beef up the diesel, and I've beefed up the suspension w/ air bags.
So, I figure in the end I have a truck equivalent to a F550 or F650, at about a third the cost.
If that proves inadequate, I'll start looking around for tractor conversions (you can get used Volvos for around $20K).
rickb
rickbsgu, Did you have to adjust the the speedometer with the bigger rims and tires?