Anything out there for lower gearing in a FJ40?

[firemansFJ40]

Does anyone know of anything available for lower gearing? I have a 1980 FJ40, 2F, H42 and was looking for a Marlin Toybox, which I understand they have been discontinued. Does anyone know of anything available to get the ratio in 1st gear to around 100:1?

 

[POPO AGIE]

You can re-gear the differentials, use an H55F transmission with split transfer case and have it geared with 3:1 or 4:1 transfer case. You can also use other 4 speeds or NV4500 that have lower first gears than the H55F. There are aftermarket transfer cases with a lower low range gears available.

 

[pjohnson]

SM420 and Orion
7x4x4.11 = 115:1

H41 and Orion
4.99x4x4.11 = 80.5

 

[jim land]

195/60r15 😄

 

[EWheeler]

Does anyone know of anything available for lower gearing? I have a 1980 FJ40, 2F, H42 and was looking for a Marlin Toybox, which I understand they have been discontinued. Does anyone know of anything available to get the ratio in 1st gear to around 100:1?

Buy a 19 spline H42 from an FJ60, or better yet, buy a new H55f, find a split case, put crawler gears in the splitcase, and put a NWF black box doubler between the H55f and splitcase. Not cheap, but its an option.

LandCruiser BlackBox

Current BlackBox Build Time is 12 Weeks With additional crawl and low range options limited for the Land Cruiser enthusiasts, we decided to bring the Blackbox proven strength, low range, and versatility to the ‘cruiser market. We focused our efforts on the common 19 spline ‘split-case’...

northwestfab.com

 

[POTATO LAUNCHER]

You can also direct swap a pair of 4/11s differentials into both axles. If the stock axles are under it you currently have 3/70s.
H55 and split case, SM420 or SM465 will get you pretty low as well.

 

[firemansFJ40]

My differentials are not stock and are 5.29. Looks like I can go with a TC like an Orion with 4.1 which will put me at 77:1, past that is a different trany if I’m understanding correctly.

 

[peesalot]

Do the 4:1 gears in the splitcase, IMO.

 

[pjohnson]

My differentials are not stock and are 5.29. Looks like I can go with a TC like an Orion with 4.1 which will put me at 77:1, past that is a different trany if I’m understanding correctly.

Correct
If you swap to an H41 ($$)...
4.5x4.1x5.29 = 98.7