I am going to regear, however since I am running 35's and going to be towing an off-road trailer. I was wondering if I should do 5:29's over 4:88.
Comments.
Thanks!
Comments.
Thanks!
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So would you say transfer case gears first and if needed differential gears @4:56 which would be stronger to tow?
What size tires are you running and you are sitting at some decent elevation there in Montana. I would go with something deeper too.4.88s just left me wishing that I had 5.29 and I don’t tow anything. I’d go with the deepest gearing available. Also I wouldn’t worry about sheering a pinion. Our pinions are small in comparison to a 14 bolt…. but it’s a 1,200 lb trailer. It’ll be fine
Are there any links to purchase the gear kit plus gaskets for transfer case? Anything else I am going to need??? I want to try this!!!
Plus do you have any recommendations for the 3rd members on gears after transfer case regear?
I run a 34ish. I spent my whole drive down to moab wishing the 80 had 5.29s. To stay in the power band going up hills, it had to be screaming going 65 in 3rd or I had to be going like 75-80mph to keep the over drive on and sometimes the hills were a little to big
I’m eventually going to do the 10% underdrive. My friend has 5.29s and the 10% underdrive, it seems like the perfect gearing for 37s.
I’m not from Montana but I live here. And I’m finding that 4.88s are not that useful for most people. If I were to do it again. I would do 5.29s and add a 10% underdrive if I did 37s.Are you from Montana? The elevation could make a big difference in your engine performance, 5.29 would actually benefit you a little more to make up for that lack of performance.
Great comments. I may go 4:88s and then go from there. Planning on towing small boat, jet ski and off-road trailer. Mainly Baja, Utah and Colorado.Ask a question and get every possible answer. Definitely start with transfer case gears, high range under drive and low range 3.12 gears at the same time. All you can do in the Transfer case is now done and nothing left to the imagination.
4.88’s are technically over gearing for 35’s already and would probably accomplish your intended purpose alone so transfer case gears plus 4.88’s maybe too much if you cruise the highway a lot. 4.56’s plus under drive gears as you alluded to already seems like a reasonable solution.
Remember that the 1FZ revs quite freely so second gear can be used to hold 55mph, even 60, on those long, steep grades. Torque peaks at 3,200 and the HP just gets bigger from there on up the tach. 212HP can do a lot of work but we must be willing to rev high enough to access the available power. Gear down too low and you will be in no no man’s land where the stock 1fz still can’t hold third up hill towing and dropping down to second means 45-50mph instead of 55-60mph.
Under drive gears plus 5.29 only for 37’s+ and rock crawling because second gear and 4,000-4,500rpm up hill on the highway all day long.
I’ve been running 37’s and 4.88’s with the stock 1:1 high range and 3.12 low range five years now. I do lots of rock crawling and it’s fine bc the engine and trans put power to the ground very smoothly. I’ll do the under drive gears at some point but not eager for 5.29’s. I’ve never seen a post by a member who stripped teeth from a 4.88 ring and pinion, only 5.29’s. Not to say it has never happen but I’ve never heard of it and I spend way too much time reading this forum.
One good reason to go with 4.88’s right off is that, while you in there you can install lockers if you don’t already have them not to mention new bearings. Your speedometer and odometer will be about 9% off with 35’s iirc.Great comments. I may go 4:88s and then go from there. Planning on towing small boat, jet ski and off-road trailer. Mainly Baja, Utah and Colorado.
I agree with this.I wouldn't consider a 1200 lb trailer a factor at all in your gear selection.