gearing behind a diesel

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yotawheeler

yotawheeler

10 Year 15 Year
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Edmonton, AB/Vancouver Island, B.C.
i have been thinking about a diesel swap for a little while now for my FJ40 and was wondering if there are any compatable tranies that will mount to a 3B or a 2H engine. these are the two engines im thinking about putting into my rig....probably the 3B though because of their abundance (is anything abundant with land cruisers?) compared to the 2H. so if i wanted would i be able to do somthing like people do on the gassers with a sm420,465 or there is another tranny that i dont remember but i just was wondering if it is possible
 
H55F?

If you do a search, you will see a lot of conversions/swaps. My favorite would be a 13BT+H55F into a 40 (but more $$$). Mainer7 has done this--search for his posts or PM him if you are interested.

hth
B
 
If you fitted the 2H you can use a H55f from a gasser,which means there maybe options that are normally fitted to a 2F such as the sm420 that Im not conversant with.
I dont of anyone thats tried that but it may just work;)

Otherwise the 3B needs its own H55f.
 
roscoFJ73 said:
Otherwise the 3B needs its own H55f.
Click to expand...

Or swap the input shaft .. anycase the best option if found a 13B+H55F combo or 2H with H55F from a gasser ..

About SM465 .. nothing to say no 5th or almost you are planing go into rockcrawling session soon.

Waht size of tire to run . ?
 
yea....im not really all that interested in doing a 13BT swap, i think when i swap it im just going to buy a BJ/HJ 60 and that way i have everything i need plus i have parts for another d/b conversion among other things should my dad ever get a cruiser or if i need parts for whatever reason. if i need more power out of either of those engines they can both be turboed and then the 3B would be pretty much the same as the 13BT anyways....tire size im running right now is 28's....pathetic i know but somthing 35+ is in the future when its all said and done....right now im just kind of "doing my homwork" so i know what im looking for when i start looking for a donor vehicle. i think the HJ would be easiest to put the SM420 tranny on or reduce gearing in some other way because it should line up the same as my F engine....
 
if you are sticking with the H42 (unless you have the 3 spd) that is behind the F then use a 3 spd gear box that has the 2.3 gearing. you will have the 4.11 gearing in the diffs. if you have the 3 spd then keep the t/case and swap in a H42, most guys throw these gear boxes out so they are cheap. i think Steve Tetu sells the adapter gear to mate the 3 spd gear box behind the H42. you will end up with 46-1 crawl which is fine for most wheeling and a set of 33s. once you turbo then a set of 35s can be installed although you will still find the 3B a bit shy on the power needed to turn them at highway speed unless you run insane boost...

cheers

BTW, i know of a HJ60 for sale (auto though) if you are interested...
 
yea crusher im running a 4 speed tranny and i would be interested in that HJ but ill be out of the country next week and ill be gone for a year so thats why this is just me kind of doing my hw on the subject because im going to start persuing parts vehicles when i get home and can actually start tearen s*** apart....plus im gonna have to pick up a second vehicle to drive while my cruiser is undergoing its heart transplant
 
to play the devils avocado,

five speeds are waaaaaaaaay over rated, and generally over priced.

the gear spacing sucks, especially when you exaggerate it with larger tires. third gear is too low, and makes the shift into fourth ugly, either rev the crap out of it in third , or lug it in 4th.
and fifth is an occasional thing for long downhills.


the low first gear is kinda nice, but considering what you have to pay for a used 5 speed, not really worth it...


that being said, both my trucks have 5 speeds in them. its fine in the stock 70 with 31's, but in the the 40 with 33's, I pretty much hate it.

cheers,
ryan.
 
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seapotato said:
five speeds are waaaaaaaaay over rated, and generally over priced.

the gear spacing sucks, especially when you exaggerate it with larger tires. third gear is too low, and makes the shift into fourth ugly, either rev the crap out of it in third , or lug it in 4th.
and fifth is an occasional thing for long downhills.


the low first gear is kinda nice, but considering what you have to pay for a used 5 speed, not really worth it...
Click to expand...

Solution....





























Turbo baby...

:D

gb
 
so....if i wanted to run a 3B in front of a 4 speed on 35+ tires.....im looken at a no go? i think thats what seapotato was getten at haha
 
yotawheeler said:
so....if i wanted to run a 3B in front of a 4 speed on 35+ tires.....im looken at a no go? i think thats what seapotato was getten at haha
Click to expand...

H42 you mean. An H41 would change things.

Be a bitch on hills and also getting going on any type in incline etc. Folks have done it, but not the best. Put some 4:56 in and thins change a little. Still not the best, but better.

gb
 
but if i can find a 2H it would probable be better in terms of power and torque when running larger tires
 
yotawheeler said:
but if i can find a 2H it would probable be better in terms of power and torque when running larger tires
Click to expand...

Slightly. The power gains are slight for an extra 2 cylinders, and I prefer knowing the piston skirt cooling is there with the 3B. For me that tips the scale. My druthers would recommend a fresh 3B with turbo for your intended use (if you wanted to stay Cdn imported IDI diesel). That said, others swear by the 2H. Or use a n/a 3B, find an H41 with B shaft, and run some 4:56 if you really want 35" tires.

gb
 
the 2H is an okay engine, not quite as rugged as the 3B but i have still seen them last for 500,000++. i have a customer in Chestemere that has a 2H 5 spd NA 86 HJ60 that runs like a champ and pulls like a mule. i have rebuilt a few 2H and when the comression is good the engine pulls WAY better than any 3B. the 2H is also much quieter than the 3B. the 3B is a work horse, a tractor, a fuel sipping mother of reliability but very slow.
the 2H has its issues but if you change the oil regluarily then it is also very reliable and the fuel milage is very acceptable.

in your situation i would say the 2H woudl be a better transplant.

cheers
 
crushers said:
in your situation i would say the 2H woudl be a better transplant.

cheers
Click to expand...

yeeeesssss !!!! :D

If you get the money .. do a total rebuild in the 2H engine .. and I sear you are be happy ! turbo .. wooo !
 
yea...i dont think i could do a re-build, i dont/wont at the time of the swap have the money or knowlege to rebuild an engine. im still a kid (17) and yea just getting into engines and mechanical stuff so im not overly knowlegable about it - just learning
 
seapotato said:
to play the devils avocado,
Click to expand...

A man after my own heart.

seapotato said:
five speeds are waaaaaaaaay over rated, and generally over priced. blah blah blah... that being said, both my trucks have 5 speeds in them. its fine in the stock 70 with 31's, but in the the 40 with 33's, I pretty much hate it.
Click to expand...

Dood. Gearing. Put some proper gears in the diffs and shut yer meat hole.
 
Greg_B said:
Slightly. The power gains are slight for an extra 2 cylinders, and I prefer knowing the piston skirt cooling is there with the 3B. For me that tips the scale. My druthers would recommend a fresh 3B with turbo for your intended use (if you wanted to stay Cdn imported IDI diesel). That said, others swear by the 2H. Or use a n/a 3B, find an H41 with B shaft, and run some 4:56 if you really want 35" tires.

gb
Click to expand...
:idea: Just wondering G.B, will your turbo 3B drag a 1HZ off? My turbo 2H does.:D
 
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