What have you done to your Land Cruiser this week? (29 Viewers)

[ERNRAM]

Replaced a H42 with one piece transfer case with a H41 with the low 4.85:2 first gear with a split case a drum brake

 

[4Cruisers]

Replaced a H42 with one piece transfer case with a H41 with the low 4.85:2 first gear with a split case a drum brakeView attachment 2433522View attachment 2433523View attachment 2433524View attachment 2433525

I'll be doing the same swap into my '71 FJ40 that most recently had an earlier H42 and one-piece transfer case. The bellhousing and driveshafts are already there, so it should be pretty straightforward. Did you support the combination off the bellhousing without adding a separate crossmember? I don't plan on adding a separate crossmember.

 

[ERNRAM]

I'll be doing the same swap into my '71 FJ40 that most recently had an earlier H42 and one-piece transfer case. The bellhousing and driveshafts are already there, so it should be pretty straightforward. Did you support the combination off the bellhousing without adding a separate crossmember? I don't plan on adding a separate crossmember.

No seperate bottom crossmember. Just stayed with the bellhousing mounting.

 

[ERNRAM]

No seperate bottom crossmember. Just stayed with the bellhousing mounting.

As long as you have the drum brake kit for the splitcase, then everything works.

 

[1911]

No seperate bottom crossmember. Just stayed with the bellhousing mounting.

Same here with my H41 and Orion case; stock bell housing mounting works fine.

 

[4Cruisers]

As long as you have the drum brake kit for the splitcase, then everything works.

I was lucky to find a complete split transfer case with drum parking brake here on MUD. It's from an '85 BJ45 from Belgium. The H41 is from an '84 HJ47 from Australia, it only has about 47,000 original miles .

 

[tlaporte]

New mirrors, from great Mud vendor City Racer (@Racer65), held on with new stainless hardware from another great vendor, Overland Metric (@davework).

Dramatic lightning courtesy of the Bobcat Fire.

 

[Living in the Past]

Have a decades old project going to start on even if I can't find the time. Started by trying to get all the parts that are scattered around together. Today was emptying out an old 70" LCD monitor box to get the bows together.

This is what else was on the box. What was left has been organized in to few boxes.

 

[RWBeringer4x4]

Replaced a H42 with one piece transfer case with a H41 with the low 4.85:2 first gear with a split case a drum brakeView attachment 2433522View attachment 2433523View attachment 2433524View attachment 2433525

You’ll need to let me know how you like that granny gear in the H41. I’m hoping to do a H41/Orion in my truck over the winter. I’m excited for what it will bring off-road, but I’m a bit worried I’ll miss the H42’s road manners by comparison.

 

[1911]

You’ll need to let me know how you like that granny gear in the H41. I’m hoping to do a H41/Orion in my truck over the winter. I’m excited for what it will bring off-road, but I’m a bit worried I’ll miss the H42’s road manners by comparison.

I'm running an H41 and Orion. I have 33" tires, and the granny 1st is not too bad; I use it most of the time I come to a complete stop. The only time I don't is if I am pointing down-hill at the stop; then I start out in 2nd gear. The ratios between gears are a bit more of a stretch than an H42, but I don't mind them. I shift at no less than 2500 rpm and usually 3000 rpm and it works fine. You get used to it pretty quick. And it is a great combination off-road.

 

[tstepp920]

Replaced a H42 with one piece transfer case with a H41 with the low 4.85:2 first gear with a split case a drum brakeView attachment 2433522View attachment 2433523View attachment 2433524View attachment 2433525

tell me about that spreader bar thingamajig.

 

[Seamus]

installed city racer led headlights.

 

[Otis]

I'm running an H41 and Orion. I have 33" tires, and the granny 1st is not too bad; I use it most of the time I come to a complete stop. The only time I don't is if I am pointing down-hill at the stop; then I start out in 2nd gear. The ratios between gears are a bit more of a stretch than an H42, but I don't mind them. I shift at no less than 2500 rpm and usually 3000 rpm and it works fine. You get used to it pretty quick. And it is a great combination off-road.

I have the same set-up in my '80 FJ40 an concur with this assessment. The only place I can't seem to find the right gear anymore is in the sand dunes. The low is too low and the high is too high when climbing dunes. Missing out on easily climbing dunes is a small price to pay for a great combo though, especially when locked on the rocks...

 

[ERNRAM]

tell me about that spreader bar thingamajig.

Tools for the job.
Cherry picker
OME load lever tool
OME pilot bearing puller
A small wood dolley

Basically, you drop the old transmission to the bottom and put on a dolley and slide out. You will need to slight left one side of the FJ to clear the frame rail. Then you put the new transmission and transfer case on the dolley and slide it under the FJ and then you lift it up with the cherry picker. The load lever is used to compensate for the added weight of the transfercase.

 

[ERNRAM]

I love the gearing. H41, 33 tires and 3:70 diff gears.
I can chirp the tires shifting in first and second gear.

65rpm at 2500rpm about

 

[Sheck44]

We went to our 1st car show ...

FYI ... I am now VERY happy with the R2.8 engine, seriously halls A!@ in 3/4/5 gears now with the 3.70 gears ... and the boss likes it too !

IMG_7724 by Steve Heck, on Flickr

IMG_7729 by Steve Heck, on Flickr

IMG_7731 by Steve Heck, on Flickr

 

[ERNRAM]

I love the gearing. H41, 33 tires and 3:70 diff gears.
I can chirp the tires shifting in first and second gear.

65rpm at 2500rpm about

 

[ERNRAM]

View attachment 2434317

Black boxes are shift points and transition speedometer to stay in the low consumption zones of a 2F

Basically 1300rpm to 2100 /2300 rpm is where you want to stay for torque, fuel efficiency and durability. This is why a 5 speed or 4 speed with a 10% OD in the transfercase makes sense if you limit yourself to under 72mph.

 

[ERNRAM]

Black boxes are shift points and transition speedometer to stay in the low consumption zones of a 2F

Basically 1300rpm to 2100 /2300 rpm is where you want to stay for torque, fuel efficiency and durability. This is why a 5 speed or 4 speed with a 10% OD in the transfercase makes sense if you limit yourself to under 72mph.

 

[RWBeringer4x4]

Black boxes are shift points and transition speedometer to stay in the low consumption zones of a 2F

Basically 1300rpm to 2100 /2300 rpm is where you want to stay for torque, fuel efficiency and durability. This is why a 5 speed or 4 speed with a 10% OD in the transfercase makes sense if you limit yourself to under 72mph.

This is some cool research - how did you figure out the fuel consumption curve?

Curious - is there such a thing as a transfer case overdrive gear (without something like adding a second overdrive case like a Fairey or Ranger).

I’ll be sticking with 4.11 gears at least in the foreseeable future. I think last time I ran it through the gearing calculations I’d be shifting out of 1st around 11mph instead of 15mph which doesn’t sound too insane.

I’m also running a 350 V8 which spoils higher than the 2F so as long as I don’t mind being deaf I’ve got a little more headroom. The old SP2P fuel crisis intake I’m running falls on its face around 4000RPM but so far I actually think it’s a perfect intake for a truck like this. Tiny intake runners make for damn near perfect throttle response and the whole torque curve gets pushed downhill a bit.