Diesel H55F To Gas? (1 Viewer)

[Gurr]

I remember seeing a thread about someone that got a used H55F from a diesel(I can't find it now) and they were going to put it on their cruiser. I hear there could be a difference between the input shafts. Is there any difference between the gas and diesel H55F?

 

[lehiguy]

I remember seeing a thread about someone that got a used H55F from a diesel(I can't find it now) and they were going to put it on their cruiser. I hear there could be a difference between the input shafts. Is there any difference between the gas and diesel H55F?

As I recall the input shaft is longer for the Diesel versions. You may be able to source a gas input shaft, then it is just a question of economics. Try Kurt at Cruiser Outfitters, he can get H55F parts.

 

[torfab]

the 2H diesel H55F will bolt right on to FJ60's with no input shaft differences. The 3B version will need modifications.

 

[RockDoc]

F and H series are the same, B series have a different input shaft. So one from an HJ60 will work with a 2F, but not one from a BJ60/42.

 

[Gurr]

Ok, thanks for the quick replies.

 

[BEE-JAY42]

If it is any help from what I understand the F/H version of the H55F is alot easier to find in north america than the B version.

 

[FJ40Jim]

It is not a gas vs diesel difference.

It is the 4cyl vs 6cyl difference.

 

[antichrist]

I want to eventually put a 1HD-FT diesel in my FJ60. However, I was thinking to put a H55 into my cruiser now to get the best performance and reliability out of the current 2F. So 6 cylinder to 6 cylinder, right??

 

[torfab]

I don't think the 1HD will mate to the H55F, you might want to double check if those will work with each-other. The 12HT I believe will work with the H55F though...

 

[Gurr]

It is not a gas vs diesel difference.

It is the 4cyl vs 6cyl difference.

So did the BJ60's come in 4 & 6 cylinders?

I have an H55 readily available off a BJ60, I'll have to see what kinda cylinders hes gots...

 

[torfab]

The BJ60 is a 4 cylinder "3B" engine, and the transmission will only work with a new input shaft. You can buy a brand new H55F for $2500, and depending on the year of your cruiser, might literally bolt in place of your 4-speed.

-Tor

 

[torfab]

Here you go

FJ40, FJ60 Landcruiser Austrialian 5-sp H55

No affiliation

 

[FJ40Jim]

I want to eventually put a 1HD-FT diesel in my FJ60. However, I was thinking to put a H55 into my cruiser now to get the best performance and reliability out of the current 2F. So 6 cylinder to 6 cylinder, right??

No, the H55 is an obsolete tranny that will only bolt up to obsolete engines, like the old F series gas, old H Series diesel and B series diesel.

The factory bellhousing available for modern engines, like KZ, PZ, HZ, HD, FZ, UZ.... will accept the modern R151 and similar trannies.

 

[1tontoy]

FWIW, the 1HZ came from Toyota factory with H55F in some applications - 70/75 series cruisers. The input shaft is different than F/H powered cruisers. 1HZ is also known as a 14B (B series) motor (like 1B/2B/3B/13B) but I 'think' the input shaft is longer than 3B/13B but has same spline count. I'm not 100% sure on the interchangeability of 1HZ and 3B/13B inputs.

So you can put a H55F behind a 1HD -- there is someone on Mud with 1HD-T/H55 in their FJ62. Do a search!

But, as far as I know, H55F is no longer put in new vehicles.

HTH

No, the H55 is an obsolete tranny that will only bolt up to obsolete engines, like the old F series gas, old H Series diesel and B series diesel.

The factory bellhousing available for modern engines, like KZ, PZ, HZ, HD, FZ, UZ.... will accept the modern R151 and similar trannies.

 

[Gurr]

The BJ60 is a 4 cylinder "3B" engine, and the transmission will only work with a new input shaft. You can buy a brand new H55F for $2500, and depending on the year of your cruiser, might literally bolt in place of your 4-speed.

-Tor

Oh, ok. So that's the difference between the H and the B then. I'm not much of a dieseldome...

 

[longbow]

Gurr,

I think I was the guy that had the thread you were looking for. Here is the link. https://forum.ih8mud.com/60-series-wagons/435850-converting-h55-3b-fit-2f.html

I converted mine from a BJ60 to H55F style.

I never updated on that thread but it was a nightmare that is still going on as I speak. First off, I had to change input shafts, which is a major pain if you don't have the special pullers for the bearings on this tranny. I had to make the pullers and then basically tear the tranny down almost all the way to get the input shaft out. Once I did that and installed the F input shaft I had some spacing problems with the bearing on the F input shaft and I still don't think I have it right because my 4th gear synchro isn't working that great and I have to double clutch to get it in 4th without grinding even though the synchro measured out fine when I had it out.

I also had some clutch/throwout bearing noise that I finally tracked down a couple of weeks ago to the input housing. The 3B H55 input housing is only 35mm in diameter and the F housing is 38mm. I now have so much slop that my throwout bearing chatters and squeals when you drive down the street. I now have to pull my tranny again and put my input housing off of my H42 on the front to fix this problem. I wish I knew this before I installed it!!!!!!!

In short, I would NEVER, NEVER, NEVER, NEVER recommend converting a diesel H55 to work in a gas cruiser, EVER!

I got a great deal on my tranny and thought I was saving a bunch of money by doing this. I would be miles ahead if I had just bought a brand new H55 and had it delivered to my house. This was a major pain! Save yourself! Run away from the diesel tranny!


Don

 

[Gurr]

Thanks for the warning, I'm beginning to wonder if a used one will be worth the difference in price...I may just pony up for a brand new one.

 

[slcfj62]

longbow, warning heeded. I'm running.

 

[longbow]

Having converted two trucks now to H55, one with a new one and now with a "rebuilt" one, (and I checked the used one out thoroughly and it came rebuilt from a reputable shop), I would never go with a used one again!

I converted my truck to a diesel (Isuzu 4bd1t) and everything seemed tight until I started driving it and now the shifter rattles and vibrates and annoys me every day. These are the things that the rebuild shop can't fix and one of the reasons I will buy a new one from now on.

Don

 

[Granite Grinder]

I'm running an H55 from a diesel truck (HJ61/ 12H-T) behind a 3F-E and it works perfectly. Mine was used with unknown mileage.