Originally Posted by kh202

I'm not saying that 3.73's won't work, they will be better than 3.21 for sure (obviously). I'd just hate to spend all that money and be in the same boat of people with stock 3.73 saying "yeah 3.73 is OK but certainly not ideal. From what i've heard from first hand experiences, 4.10 and 35's is pretty much perfect for these new engines all around, 4.56 might be a little better for off road performace. I still have 3.21's so i can't speak as to why 3.73 wouldn't be ideal, but all i know is there are a lot of people with stock 3.73 who aren't happy with them. Just my 2 cents

As for the torque curves, i don't really follow. You most definitely have more torque at 3000 than you do at 1800. I'm at work and didn't open the attachment, but for example, try holding a certain speed in 6th gear on flat highway or try to accelerate at 1800 rpms. Now down shift hold that speed and stomp on the gas.... make sense? The 3.6 and the 3.8 are definitely high revving engines compared to the 4.0

Originally Posted by 1chance75

I think I'm confusing torque from the engine with torque at the rear wheels. The engine isn't making any more torque between 1800 and 3000, but the transfer case is a variable torque multiplier, so in a different gear (downshifting) the torque at the rear wheel and thus acceleration is higher. You guys are much smarter than me about this stuff. I can read the charts and do math, but you guys have real world experience, which is much more valueable. Unfortunately, ideal for a guy creeping along in Houston traffic probably won't be the same as ideal for a guy trying to climb up a mountain. I'm hearing a lot of support for the 4.10 and nobody standing up for the 3.73; that should tell me something.