4.56s on 33s at 75 mph would put me at 2400 rpm in final gear. That's really not too bad. I've cruised at 90 for 3 hrs more than a few times out on the open highway and that's where the rpms were and I've never had an issue. If I do a gear change it will be 4.56, plus then if I ever decide on 35s I'll be ready.

 

I'm really wanting to hold onto my fx4 wheels so I'll be sticking with 34x11.50s. I almost never cruise above 2k so hearing that sounds awesome.

 

Lately I've been cruising about 65-67 on the highway at like 1700 rpm. I had no idea I could get such good mileage, actually I never really cared lol. I'm getting between 15-17 on the highway with 10ply 33s and a 3.55. Not to mention with all my tools the truck weighs 6200lbs. I would really like the extra gear for low end, but highway is just as important. My truck will downshift if it even sees a hill.

 

Mine with 33s and 3.55s was right in the sweet spot as far as hwy mileage went. Then I decided I needed the heavier 10 ply toyo and if my cruise is set I see way too many down shifts.

 

I love my General AT2's. quiet and they glide through the trail when aired down. Since I'm so happy with these I've considered going to Red Letter grabber next season but I'm in fear of the same thing you experienced. My gear is good enough to handle it but that's a lot of coin to risk if the weight is too much.

That's why I might wait till after the engine work is done. ..make enough Tq and I won't care about the weight of the tire, lol.

 

You really shouldn't have any problem running those on 4.56 gears though should you?

 

I don't think It would but the truck is just getting heavier by the year. Grabbers are 10-12lbs heavier per tire. Since I'll be back to towing a boat and car hauler next year, every pound matters. ..especially rotating mass.

Other than looking down on everything a bit, taking onramps slower and small parking spots, the truck still drive pretty good and not too far off from stock.

Everything we do slowly gets them further away from that stock feeling.



Ideally, if I could build the truck anyway I want, I'd go with a smaller lift with more down travel extension.

I'd love a 4" lift from stock (No BL), Long travel front end kit, Cutout fenders, 37-38" tires, Deavers in the rear, 10.25" rear & ARB Lockers. I'd do it if I didn't have so many other things that like to take my money. lol.

 

Sounds about right I guess, for around here anyway. I've never seen less than a grand per axle, -1200 per axle use to be the going rate. But I'm talking more than a decade ago...maybe even two lol.

Learn how to shim and set backlash, - you'll be all set. Score that secret spec sheet from your maker.

 

That 14 lb jump is pretty rediculous. Mine are right at 70 and I could definitely feel that change.

That would be the perfect way to build a truck. I hope you get a chance to do it. I figure once this wedding and house are done I'll be a lot better off... here's to hoping. Lol

 

Speaking of things that take the money. lol

Here's a fact of life I learned the hard way: no matter how much money we make, we'll always find a way to need more of it.