Low Cost Low Gears

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why dont you just sell you rig and get a tractor.

i hear they are geared pretty low
 
Hey there guys. im brand new from Aus.
I was scanning thru ih8mud trying to see what you guys stateside do for cheap gearing and obviously its no better in the states then back in aus.

a friend of mine is considering making very similar gears to the marks kit, since seeing this now i will tell him that theres obviously a market stateside.

cheers

DRS
 
Hi All:

All the answers you've gotten so far are valid. There is really no "cheap" way to get lower gearing.

Arguably the "best" way is to bolt an "Orion" t-case from Advance Adaptors onto your stock H42 transmission.

Arguably the most inexpensive method would be to swap to the so-called "three-speed" t-case.

Probably the best "bang for your buck" is the SM420 transmission/TLC "three-speed" t-case swap.

No, these three methods do NOT net the same gearing; the "three-speed" t-case swap helps, but is no where close to the SM420 or the Orion in low gearing.

I ended-up doing the H41 swap because it was an easy bolt-in swap. It works really well with a 2F engine, but sometimes I think that I should have done the SM420/"three-speed" t-case swap instead; about the same $$ range, much lower gearing, but not a straight bolt-in and not as street-friendly.

Good luck with your rig!

Regards,

Alan
 
Cheap gearing DOES in fact exist if you're willing to do some foot work.

I did my SM420 conversion in my FJ40 for less than $600 including a new old stock SM420.

.

what is new old stock?! i think iv seen this before in threads...what exactly are you reffering to, is it somthing that hasnt been used that sat in the back of a store room or somthing that has been re-maned ? sorry for the ignorence but i just wanna know...
 
I like the Toy box/dual transfer idea,low gearing when you want it and still streetable,not a cheap option though
 
what is new old stock?! i think iv seen this before in threads...what exactly are you reffering to, is it somthing that hasnt been used that sat in the back of a store room or somthing that has been re-maned ? sorry for the ignorence but i just wanna know...

The US military had a vehicle called the Gamma Goat.
The Gamma Goat used an SM420 transmission that had a different top cover (top cover is a funky linkage shift mechanism) and it also doesn't have the PTO port machined out. There are a few minor differeances Otherwise, the transmission is identical to the 1967 SM420.

Anyhow, a company in California bought up a BUNCH of new old stock SM420s froma military surplus auction. They were branded 'Condiesel'. The one I got was in a Condiesel bag, that was factory sealed, and the transmission was covered with cosmoline, but it was brand new.
 
Eddy, I'm in the same boat-except that I have no budget. So I'll have to wait. Your price guesstimates are about right. I'll probably end up with H41/3speed. Good luck!!
 
While reading stuff, I came across this MAF oil return kit: http://www.man-a-fre.com/parts_accessories/oilreturnkittransmissiontransfercase.htm
Oil%20Ret%20Kit.jpg

"A common problem on pre 1988 Land Cruisers is the failure of the oil seal between the transmission and transfer case. When this occurs the transfer case tends to pump gear oil into the transmission, starving the transfer case of oil. This kit connects the two filler holes, so the transmission can return oil to the transfer case as needed. "

I mentioned in my Surf&Turf post that I thought I ran my t-case out of oil in the last miles out of Pozo, but I never saw a puddle. I also remember when I filled it before I left that the transmission had enough oil that it spilled out when I opened the drain plug.

I guess I'd better take out my transmission in any case. [sigh]

An H41/Orion/3.73 is a 73:1 total ratio and 10% overdrive from what I have now. The 3.73s would put the compound low in a better range compared with 4.11s..
i know its dum but if i use this what fluid do i run in the transfer. gear oil or tranny fluid:confused:.ive never seen this.i assume you use trannyfluid right:D
 
Ed, no other tranny is gonna be as street friendly as the H42. Word.

If you are looking at a true daily driver scenario, I'd pick the 2nd option with the Orion. My 40 takes me everywhere I want to go, wheels the way I want it to. But I can tell you almost as soon as I swapped in the H41, I started drifting towards another LC as my daily driver. My swb already has the H42, and my lwb will have one soon.

My .02.

Best

Mark A.
 
The US military had a vehicle called the Gamma Goat.
The Gamma Goat used an SM420 transmission that had a different top cover (top cover is a funky linkage shift mechanism) and it also doesn't have the PTO port machined out. There are a few minor differeances Otherwise, the transmission is identical to the 1967 SM420.

Anyhow, a company in California bought up a BUNCH of new old stock SM420s froma military surplus auction. They were branded 'Condiesel'. The one I got was in a Condiesel bag, that was factory sealed, and the transmission was covered with cosmoline, but it was brand new.

interesting... sounds like you found a pretty wicked tranny, what'd you pay for it?
 
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New gear sets and bearings installed in the diff, not even installed in the axle, are not that cheap....

In this somewhat confusing endeavor I took it that he's using 3.70 axles and wishing lower gearing. In that case a change to 4.11 axles would be cheaper than the various and sundry trans or transfercase changes.

Now, revisiting, I'm not sure if I 'm clear about what he wants.

Even so, I'd guess that I could swap the stock 4.11 DIFFERENTIAL gearing that's in my AXLES for a deeper ratio for less than my H41 cost me from Marvin unless prices have reversed on things in the last year or so. :)
 
Unless you setup your own gears the cost of a ring and pinion change is not cheap.
 
interesting... sounds like you found a pretty wicked tranny, what'd you pay for it?

$380 shipped to my front door.

One of the best mods Ive done.
 

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