FJ60 axle swap without outboarding springs (2 Viewers)

[CruisinGA]

I'd like to ditch wheel spacers in the front on my FJ40 and I need to replace my front axle housing anyway (trashed inner seal surface from too many broken birfs)
I'd rather not outboard the front springs, has anyone done this by notching the passenger side leaf spring into the axle housing?

 

[jimkyser]

I'd like to ditch wheel spacers in the front on my FJ40 and I need to replace my front axle housing anyway (trashed inner seal surface from too many broken birfs)
I'd rather not outboard the front springs, has anyone done this by notching the passenger side leaf spring into the axle housing?

How about switching to IFS spindles, hubs, and calipers and keeping an FJ40 axle housing? I think you gain 1.5” per side this way.

Redline sells a complete kit.

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

redlinelandcruisers.com

 

[peesalot]

The 60 housing mod has been done , search crawlin cruiser on pirate4x4, but that was 20 years ago. a quick google search og 60 axles ina fj40 brings up the links to the old threads.

 

[Mike Shull]

How about switching to IFS spindles, hubs, and calipers and keeping an FJ40 axle housing? I think you gain 1.5” per side this way.

Redline sells a complete kit.

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

redlinelandcruisers.com

Correct. 3” total WMS gain to 58”. The FJ60 is 58.5” WMS. I did the IFS route 20+ years ago (no kit) and I’d recommend it, especially if you have the FJ40 axles already.

 

[jim land]

With a 60 axle you have to delete the u bolt next to the diff and make a plate with threaded holes to use bolts instead

 

[bsilva132]

I'd like to ditch wheel spacers in the front on my FJ40 and I need to replace my front axle housing anyway (trashed inner seal surface from too many broken birfs)
I'd rather not outboard the front springs, has anyone done this by notching the passenger side leaf spring into the axle housing?

@RustyNailJustin did this on one of his builds. Baja 45 IIRC.

 

[Firemedic831]

You Do Not need to change the spindle or the lock out hubs to run IFS hubs.

 

[jim land]

With the IFS , the turning pivot axis stay the same as stock 40 , so the tires will travel more compare to 60 axle , not the best for trunion bearing , same as your spacers do

 

[Firemedic831]

I run 40 inch tires with IFS hubs and have ZERO problems with my trunion bearings .

 

[pbgbottle]

Didn’t LCWizard make his axle tube extension to deal with this issue. I can’t remember it’s been a long time. Hmm.

LCWizard axle tube extension​

 

[jim land]

I run 40 inch tires with IFS hubs and have ZERO problems with my trunion bearings .

It is true that 40 axle are stout and my comment was general , but it is best to keep the tire near the turning axis

 

[White Stripe]

Ruff stuff sells a kit with perches designed to install a fj60 axle without moving the springs.

 

[CruisinGA]

Ruff stuff sells a kit with perches designed to install a fj60 axle without moving the springs.

Just ordered! Hopefully this is the ticket.

How about switching to IFS spindles, hubs, and calipers and keeping an FJ40 axle housing? I think you gain 1.5” per side this way.

Redline sells a complete kit.

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

Red Line Big Brake Kit, Front Land Cruiser, FJ40, FJ45, FJ55, FJ60, FJ70

redlinelandcruisers.com

I'd forgotten about the IFS hub option, but this solves only part of the problem as I am trying to get the tire closer to the turn radius for better handling. Wheel spacers themselves don't really bother me.

 

[CruisinGA]

Since I am sprung under, the next question I need to answer is whether my 17" rims with 3.75" backspacing will clear the 1-ton TRE's I use on standard steering arms without wheel spacers

 

[POPO AGIE]

I'd like to ditch wheel spacers in the front on my FJ40 and I need to replace my front axle housing anyway (trashed inner seal surface from too many broken birfs)
I'd rather not outboard the front springs, has anyone done this by notching the passenger side leaf spring into the axle housing?

I converted a FJ60 axle to a full floater using a flange from FROR, with new front spindles, and front wheel hubs from my front axle and then put new perches on the housing to line up with the FJ40 springs. The flanges from FROR have mounting points for Toyota calipers.

Then got a big brake kit that came with IFS wheel hubs and 13.3 inch Toyota rotors and calipers. The IFS hubs moved the wheel mounting flange out1.5" on each side so the track is close to the modified rear axle.