Regearing to 4.88

[Delboy]

I remember saying when i changed to 33's that i probably wouldnt regear as there wasnt much difference. Well, i've gotten tired of changing down a gear everytime i go up a little hill. Tired of crappy mileage too, so i've bitten the bullet and order 4.88's for my diffs. My originals are 4.3's since my first tyres were 215/70r15. I would imagine i'llnotice a far difference. I ordered them from a guy who advertised on Pirate4x4. He had the best price by far and came in at least €100 cheaper than any others. They are Yukon gears which i have heard mainly good things about. I called him in the states and he was very helpful. A really nice guy and a big U2 fan, of course. The website is www.performanceoffroadcenter.com . They do all sorts and apparently he will beat any price for anything.

[TonyN]

All the gear sets LA Supertrux sells are Yukon gears, good stuff. You fitting them?

[Delboy]

Yeah Tony, Yukon! Do you reckon i could set them up myself or should i get someone in the know to do it?

[TonyN]

Dunno, its a tough call, all you need is a dial guage, the correct preload and backlash specs, and loads of patience!

Personally, I'm gonna do my own when needs be, but its lots of cash down the drain if they arn't setup correctly, to much or to little backlash will fawk them in a few 100 miles.

So, do you feel lucky......punk????

[Delboy]

Gulp!

[Vagrant No2]

Gulp!

I paid a local firm £150 cash to rebuild my Lotus diff . I thought for that price let someone else with the experience and tools for the job do it .Shims , preload tubes and stuff not on my shelf !
Funny letting Tam , my wife , carry it to work in a Sainsbury shopping tub and deliver it and collect it from the guy ! He must have wondered what the heck she was delivering .

Rick

[Delboy]

I have all the equipment to do the job, but i might get the guy who sold me my front locker to help. He did offer, so it would be rude not to take him up on it.

[JimL]

S'funny your '90 had 4.3 gears with 215s yet my early '91 has 4.56 also with 215s stock. That Sean fella knows more bout these Yotes than many, hes got a 1HDFTE running on a made-up frame in his shed.

[Delboy]

I bought his old 2.4 engine from his surf incl all ancillaries for €400. Have to collect it soon. Will wait till gears arrive and maybe kill two burds with one stone.

[JimL]

I bought his old 2.4 engine from his surf incl all ancillaries for €400. Have to collect it soon. Will wait till gears arrive and maybe kill two burds with one stone.

My missus has two Auntie Hillarys if they are any use to ya

[Delboy]

[mrkeeg]

... Well, i've gotten tired of changing down a gear everytime i go up a little hill. Tired of crappy mileage too, ...

poor milage? but shouldn't having the truck over-geared give you lower cruising rpms and thus better milage? I am considering regearing "up" for this purpose, and am interested in thoughts.

Thanks,
Keegan

[TonyN]

poor milage? but shouldn't having the truck over-geared give you lower cruising rpms and thus better milage? I am considering regearing "up" for this purpose, and am interested in thoughts.

Thanks,
Keegan

Delboys bigger tyres and other junk fitted to the truck means the truck can't get into its powerband, so he's having to rev it higher in lower gears to get the power so using more fuel. He's at the other end of the problem from you.

To higher gearing will just suck all the torque out of the engine, getting just as crappy MPG as to low gearing revving its t!ts off at motorway speeds.

[mrkeeg]

Hmm... makes sense, thanks for the thoughts.

...I guess it may not be worthwhile ... *wondering about some power mods (air intake scoop, exhaust) to offset the torque loss of up-gearing* ..hmmm... gotta save a lot of gas to pay for that! *L* guess I'm stuck where I am...

Keegan

Interestingly ... perhaps this is for a different thread... but we rented a suburban (you know, the original, monstous american gas-guzzler) for a long road trip with a lot of gear and people , and....

tons and tons of power
way bigger and heavier than a surf
v8 gas
and ... 14L/100k (way better milage than a surf) -

... so what's the deal? It was brand new for one thing ... but another thing I noticed is that it hardly left 2000 rpms, even at over highway speed or under load ... interesting.

[JimL]

So Derek, what the eck appened? Are you regeared and where are the pics?