ARB Air Locker

[evomaki]

I am considering the purchase of a rear ARB Air Locker and installation of a 4.90 gear set in a 2000 Montero, which does not have a factory locker. I think there must be some sort of difference in the third member gear carrier width between an air locker equipped vehicle and w/o. I can only assume the gear carrier must be wider on an air locker equipped Montero? But I really don't know. When swapping a third member (say from an SR) to a non-locker equipped vehicle, posts on this message board have talked about the need to replace the driver side axle with a shorter axle from an air locker equipped vehicle. The ARB catalogue indicates my vehicle would require locker part no. RD 154. I am trying to prove positive that this will work, given what I think is some difference in the gear carriers on these vehicles. I have emailed ARB with the same question. No reply as of yet. I just don't want to spend a ton of money, get this all torn apart, and then find out there is a problem. Thanks for the help.

 

[Michael Brown]

I would call ARB USA or the ARB Australia information line to confirm what is needed for your vehicle. I'm pretty sure this has been done to a Pajero somewhere, but I cannot find a thread for it on the Pajero forums.

 

[plh]

I am considering the purchase of a rear ARB Air Locker and installation of a 4.90 gear set in a 2000 Montero, which does not have a factory locker. I think there must be some sort of difference in the third member gear carrier width between an air locker equipped vehicle and w/o. I can only assume the gear carrier must be wider on an air locker equipped Montero? But I really don't know. When swapping a third member (say from an SR) to a non-locker equipped vehicle, posts on this message board have talked about the need to replace the driver side axle with a shorter axle from an air locker equipped vehicle. The ARB catalogue indicates my vehicle would require locker part no. RD 154. I am trying to prove positive that this will work, given what I think is some difference in the gear carriers on these vehicles. I have emailed ARB with the same question. No reply as of yet. I just don't want to spend a ton of money, get this all torn apart, and then find out there is a problem. Thanks for the help.

I think the axle issue only applies to the Mitsubishi airlocker swap. Just wondering - it would seam less expensive to just swap in a Montero SR entire rear (and Sport 4.90's) rather than doing an ARB.

 

[jeep-N-montero]

I am considering the purchase of a rear ARB Air Locker and installation of a 4.90 gear set in a 2000 Montero, which does not have a factory locker. I think there must be some sort of difference in the third member gear carrier width between an air locker equipped vehicle and w/o. I can only assume the gear carrier must be wider on an air locker equipped Montero? But I really don't know. When swapping a third member (say from an SR) to a non-locker equipped vehicle, posts on this message board have talked about the need to replace the driver side axle with a shorter axle from an air locker equipped vehicle. The ARB catalogue indicates my vehicle would require locker part no. RD 154. I am trying to prove positive that this will work, given what I think is some difference in the gear carriers on these vehicles. I have emailed ARB with the same question. No reply as of yet. I just don't want to spend a ton of money, get this all torn apart, and then find out there is a problem. Thanks for the help.

Why not simply swap in the complete rear axle assembly from an SR and 4.90 gear sets from a Sport? No need to make life more complicated than it needs to be. Or just swap in the complete front and rear 4.63 axles from an SR and be done with it. Both swaps have been covered on here with a couple write-ups.

 

[evomaki]

Thanks for the input guys. Agreed, the SR route and Sport would be cheaper. I have made numerous trips to boneyards looking for the right 4wd sports, all to no avail. The junk yards in my area just list "Montero Sport" and the year. It is a crap shoot, and all I find are 2wd vehicles. I already have a set of 4.63 SR axles front and rear, with pump. Not having luck locating a second one. If the ARB is an option, I'd just drop the coin and buy 4.90 ring and pinions from Mitsu for my ride, and give the SR parts to one of my kids to put on their Montero. Hitting a road block part way down the ARB route would be a mess.

 

[plh]

car-part.com I think I paid around $125 shipped for my 4.90 Sport rear 3rd member & ring gear set. Front was less because I found it local I think was $90 for the whole front including the jack-shaft tube and shaft - picked it up.

I removed the ring and pinion from the sport 3rd member and installed into a '95 SR locker entire rear. I added a Starion LSD to the Sport front. These were in my '92 before I sold it. Now they are both sitting on my garage floor waiting for a re-purpose.

 

[Swank Force One]

car-part.com I think I paid around $125 shipped for my 4.90 Sport rear 3rd member & ring gear set. Front was less because I found it local I think was $90 for the whole front including the jack-shaft tube and shaft - picked it up.

I removed the ring and pinion from the sport 3rd member and installed into a '95 SR locker entire rear. I added a Starion LSD to the Sport front. These were in my '92 before I sold it. Now they are both sitting on my garage floor waiting for a re-purpose.

What are the chances that that re-purpose could be "Swank Force One offers monies for them?"