ARB Front Air Locker UP!

[Cruiserhead]

RD111 advertised on ARBUSA.com!
http://arbusa.com/New_Product_Advices/air_locker_rd_111_rd121.pdf

[bulldog]

:bigok: :bigok: :rockon:
Kewl!!! Seems like the RD111 will be the one to go with, even though the V8 and 05+ V6 has 3.73 gears. Time to get them fricken gears now :D

I see my bank account :mecry: in the future.

[Cruiserhead]

Get the bling man! :cool1:
http://www.boab4x4.com.au/images/betaLocker.gif

[bulldog]

Nice thing about lockers and gears are no bling bling :nono: only trail performance :P

[landon_toast]

Wohoo, just need to finish getting my lift and protection done, then I will be getting that.

Im goin the route of protection first, anyone heard anything about skids for the 4th Gens yet? (I know lance's guy doesnt make them anymore)

[bulldog]

Wohoo, just need to finish getting my lift and protection done, then I will be getting that.

Im goin the route of protection first, anyone heard anything about skids for the 4th Gens yet? (I know lance's guy doesnt make them anymore)

Lance never made them. Downey makes skids, but they dont cover to the transmission. THere was a guy in AZ who made a few custom ones that go all the way back to the transmission.

[Dealmaker]

The 4th gen really needs the skids, too. So many goodies down there to break. Perhaps we need to start another iterest thread, cross-post to the other forums, and see if we can get Demello or anyone else interested.

Lance never made them. Downey makes skids, but they dont cover to the transmission. THere was a guy in AZ who made a few custom ones that go all the way back to the transmission.

[bulldog]

The 4th gen really needs the skids, too. So many goodies down there to break. Perhaps we need to start another iterest thread, cross-post to the other forums, and see if we can get Demello or anyone else interested.

Done

http://www.toyota120.com/forum/showthread.php?t=231


So back to lockers in this thread.

[expat]

Would I have this about right -

Front and rear lockers approx $770 each
Compressor $220

All wiring and standard ARB switches included.

How much would the labor charge be for installing the lockers (not the compressor) and how many hours?

[bulldog]

James would be able to tell you. He did the wiring and ran the airlines before he took it in for the locker install. You might want to do the same.

Also the front will be more expensive than the back to install as it takes more time to pull the front carrier.

James was very happy with the shop he used, so you might want to use the same guys.

[05sport4x4]

I also went to the same shop James used and felt they did a good job. They mostly work on Jeeps but one of the mechanics has an old FJ with lots of mods.
I was quoted $225 - $250 for installing the RD23 in the rear of the 4runner. I the end I had it put in the p/up and it ran a little more (needed different bearings for the 4cyl).

[expat]

Thanks John. How long was the instal job?

[05sport4x4]

Thanks John. How long was the instal job?

Well Mark it was to only take about 3 hours. I went the day after Thanksgiving and since they are in Burbank (about 40 minutes from my house) I decided to just wait. Well everything started out good truck on the lift, tires removed, fluid drained, brake lines loosened and axels pulled out, and the drive shaft disconnected and tied up. The third member was then removed. After the True Trac was removed they realized the locker (which I got from James) was set up for a V6 and not a 4cyl like I brought in. So they made a couple of calls (not many places were open that day) and found a set of bearings. After lunch they arrived and were pressed on. Well one of the bearing lost its cage and the bearings themselves fell out. The tech tried several time to reinstall the cage but it would not stay on. So back on the phone to order another bearing they went. Well the place he got them from had sent us their last set and no one else was open (2pm by now). In the end my wife finally came and picked me up around 4pm. The install was finished on Monday.

I spent most of yesterday figuring out were I wanted to install the ARB compressor and switches. I liked the clean install James did on his 4Runner and was aiming for the same result. I prefer the clean ‘factory’ look when adding accessories so I will spend a fair amount of time before cutting anything. I mounted the compressor to the driver side fender next to the master brake cylinder. I next cut in for the 2 switches next to where there was a factory cap. (I have my fog light switch currently there. I will replace it with the front locker switch later). I still need to run the air line to the diff, lengthen the power leads to the battery, and make the final connections under the dash.

Can’t wait to get this finished and try it out. Maybe a day run to Big Bear the week of the 26th will be in the works.

[Cruiserhead]

Hey John, you went thru a little adventure there.

They are a good shop and have a very good reputation. Also the price is fair as I've heard install prices as high as $800 but really, the range 4xDoctor has is a totally standard rate.

That one Cruiserhead w/ the 40 is a kick butt mechanic. He had back problems but is now back to work so they have solid wrenches there.
I was recommended the shop originally by a couple Cruiserheads and also Chuck (Calrockx) who had his locker/regear done there. Actually, several TOyota guys have had good luck w/ them.

Typically a locker will take 1/2 day to one day. Usually drop off in the morn-pick up by 3pm. Carrier bearings, as John did, add to time but they use new instead of trying to mess w/ reusing the old one. I would rather it be done that way and wait just a bit for it.

Victor brought in his 3rds to have locked/regear there too. Good shop.
I would expect 2 days for ff/rr lockers and regear.

[Vegas Runner]

:bigok: :bigok: :rockon:
Kewl!!! Seems like the RD111 will be the one to go with, even though the V8 and 05+ V6 has 3.73 gears. Time to get them fricken gears now :D

I see my bank account :mecry: in the future.


I am trying to make sense of the information regarding the arb lockers and have the following questions:

1.) Regarding Rear Locker RD23

1A.) The application notes published by ARB (see screenshot below) indicate that the RD 23 is the part required for the V6 rear. I have the V8. is the RD23 the part required for the V8 also?

1B.) There is a note that says "Late model 50mm carrier bearings must be used. This will also improve bearing life." Does this mean that in addition to the ARB part number RD23 that additional parts must be purchased to install the rear locker?



2.) Regarding Front Locker RD111 and 121
The application guide indicates that the RD111 is for gear ratios of 3.91 and up while the RD121 is for gear ratios of 3.73 and down. I have a 2003 V8 4WD 4Runner.

2A.) What gear ratio do I have? Were there options, I dont remember any when I made my purchase.

2B.) There is a note next to both the RD111 and RD121 saying "May use either RD111 or RD121. Model required varies with ring and pinion ratio. What does this mean to me?

http://members.cox.net/egiandomenico/Pictures/arbspec.jpg

[bulldog]

1) The RD23 work on all 4th Gen 4Rs as the rear diff is the same.
2) All V8 4Rs have 3.73 ratios on the diffs. 03-04 V6 4Rs have 3.91 and 05+ have 3.73.

Hope that answers your questions.



BTW the FJC will use the RD23 in the back and the AT has 3.73 gears and the MT 3.91 gears.

[Cruiserhead]

also, you should feel free to call Tim Lund at ARB USA. He will sort out any other questions you have

[Vegas Runner]

also, you should feel free to call Tim Lund at ARB USA. He will sort out any other questions you have

Before I buy I will contact Tim. It still may be some time but I like to think about these things for some time before I jump in. It is sounding like the RD121 is the correct item for my 2003 V8.

[bulldog]

Before I buy I will contact Tim. It still may be some time but I like to think about these things for some time before I jump in. It is sounding like the RD121 is the correct item for my 2003 V8.
If you want to regear at some point the ideal would be to do it when you install lockers. Probably not needed fro 32" tires, but for 33" and above it might be something worthwhile looking at. Unfortunately there is currently no gears availible in the US, but Iceland and OZ does have some.

[Vegas Runner]

Where is a good place to tap into power for the ARB switch illumination? I need power that is only on when the ignition is in the accessory or started position.

[bulldog]

Where is a good place to tap into power for the ARB switch illumination? I need power that is only on when the ignition is in the accessory or started position.
James should have the points as he did a pretty clean instal in his 4R. Maybe see if you can find James' (Cruiserhead) install thread.

[AlexJet]

1) The RD23 work on all 4th Gen 4Rs as the rear diff is the same.
2) All V8 4Rs have 3.73 ratios on the diffs. 03-04 V6 4Rs have 3.91 and 05+ have 3.73.

Hope that answers your questions.

BTW the FJC will use the RD23 in the back and the AT has 3.73 gears and the MT 3.91 gears.

I've heard that 5sp AT has 4.10 ratios. Am I misunderstanding something :confused:
I also thought that many guys went with RD111 as the closest one.
What would happen if installing RD23 on the rear and 3.91 or 3.73 on front? Would it heart Transfer Case? What is the ratio for RD23, 4.10?
I'm a little bit confused, even after reading many threads about lockers here, in Yotatech and T4R.
What are stock ratios on Front and Rear Diffs?

[bulldog]

I've heard that 5sp AT has 4.10 ratios. Am I misunderstanding something :confused:
I also thought that many guys went with RD111 as the closest one.
What would happen if installing RD23 on the rear and 3.91 or 3.73 on front? Would it heart Transfer Case? What is the ratio for RD23, 4.10?
I'm a little bit confused, even after reading many threads about lockers here, in Yotatech and T4R.
What are stock ratios on Front and Rear Diffs?

ALL 5SPD AT 4Rs, GXs and FJCs have 3.73 gears in the front and rear diffs. That is US spec, but I have seen nothing that states differently for Canada.
The 4spd AT 4R and 6spd MT FJC have 3.909 diff ratios.

You HAVE to install the same gear ratio in the front and rear, otherwise you wil create enormous strain on your drivetrain and it will destroy your transfercase in short order. (Unless you only run in 2WD).

The ARB lockers do not have a gear ratio. The gear ratio is determined by the ring and pinion. Teh rear uses RD23 lockers and the gear ratio is irrelevant. On the front ARB has specified 2 different lockers pending the ring and pinion gear ratio. See specs posted earlier in this thread.

[AlexJet]

ALL 5SPD AT 4Rs, GXs and FJCs have 3.73 gears in the front and rear diffs. That is US spec, but I have seen nothing that states differently for Canada.
The 4spd AT 4R and 6spd MT FJC have 3.909 diff ratios.

You HAVE to install the same gear ratio in the front and rear, otherwise you wil create enormous strain on your drivetrain and it will destroy your transfercase in short order. (Unless you only run in 2WD).

The ARB lockers do not have a gear ratio. The gear ratio is determined by the ring and pinion. Teh rear uses RD23 lockers and the gear ratio is irrelevant. On the front ARB has specified 2 different lockers pending the ring and pinion gear ratio. See specs posted earlier in this thread.

You are saying that RD23 doesn't have ring and pinion, so it duplicates my stock. RD111 & RD121, both have them and I have to choose the one I need (5sp AT = 3.73). This means that if I'll install RD121 (3.91) on front, I'd have to re-gear my rear using ring and pinion from FJ or 4spd 4Runner. Did I get you right?

[bulldog]

You are saying that RD23 doesn't have ring and pinion, so it duplicates my stock. RD111 & RD121, both have them and I have to choose the one I need (5sp AT = 3.73). This means that if I'll install RD121 (3.91) on front, I'd have to re-gear my rear using ring and pinion from FJ or 4spd 4Runner. Did I get you right?
No locker has a ring and pinion. It replaces the carrier not the ring and pinion. Therefore you still have to buy the gears you want or reuse the factory ones.

[AlexJet]

I see, so RD23 with stock gears needs RD111.