Axle extenstion sleeve (1 Viewer)

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I am in talks about getting a run of these made again to extend a toyota housing 40/60 ect. I would need to make a run of at least 10. Is this something that is still popular or is a new housing the way everyone is going these days.

I am looking to ext a 60 short side. I think they come in at 2 5/8" but could be made longer I am sure.

Let me know your thoughts.

Thanks,
Rob
 
How much they charging you? I've got a lathe, could whip up a few if you need them, in whatever quantity. Just need a drawing to go off of.

I had a set of these years ago, but never ended up using them. It's just a length of thick wall DOM with a socket machined on one side and a stub machined on the other, with bevels, correct?
 
How much they charging you? I've got a lathe, could whip up a few if you need them, in whatever quantity. Just need a drawing to go off of.

I had a set of these years ago, but never ended up using them. It's just a length of thick wall DOM with a socket machined on one side and a stub machined on the other, with bevels, correct?
I have not found out exact cost. I know cost of DOM. A friend has one I could use to copy. I figured if it was cheap enough just have some made and sell them off, keep a few for my self. I am looking at ideas...
 
I’m out of the loop. School me.

Does this create a centered rear axle? Just wider?

Either, your imagination is the limit:


 
Either, your imagination is the limit:


Thanks for the reading material 👍😎
 
I've done some reading on this and understand the reason for widening the short side for keeping spring center distance @ OE specs on a 40 serie. What I don't quite understand is why 2-5/8" was landed on? Is it just the minimum required distance to achieve the goal? Both FJ40 and FJ60 inner passenger shafts are ~17.25" long. Adding a 2-5/8" sleeve means you need an ~19.875" custom inner axle shaft on the passenger side, that length doesn't coincide with any other factory length shaft that I am aware of. Trailgear does offer a +5 inner axle shaft at 19.4375", which I suspect would work just fine, not sure if it was on the market when these sleeves started coming about though.
 
I am in talks about getting a run of these made again to extend a toyota housing 40/60 ect. I would need to make a run of at least 10. Is this something that is still popular or is a new housing the way everyone is going these days.

I am looking to ext a 60 short side. I think they come in at 2 5/8" but could be made longer I am sure.

Let me know your thoughts.

Thanks,
Rob
What is the driver behind wanting to widen it?
 
Stability and get closer to a 80 rear width
 
I've done some reading on this and understand the reason for widening the short side for keeping spring center distance @ OE specs on a 40 serie. What I don't quite understand is why 2-5/8" was landed on? Is it just the minimum required distance to achieve the goal? Both FJ40 and FJ60 inner passenger shafts are ~17.25" long. Adding a 2-5/8" sleeve means you need an ~19.875" custom inner axle shaft on the passenger side, that length doesn't coincide with any other factory length shaft that I am aware of. Trailgear does offer a +5 inner axle shaft at 19.4375", which I suspect would work just fine, not sure if it was on the market when these sleeves started coming about though.
2-5/8" added to the long side of an fj40 makes it the same as an fj60 adding 2-5/8"to the long side of an fj60 makes it the same as an fj80. I think that was the original reasoning?
 
Run IFS wheel hubs and that will gain you 3 inches much easier to achieve .
 
Run IFS wheel hubs and that will gain you 3 inches much easier to achieve .
Yep. Its been years, but IIRC, Sky used to sell a kit. Used them a few times when doing SAS swaps.

@matzell, just curious why going this route with the availability and affordability of aftermarket housings these days?
 
What would you like to know ?
 
I’ve recently seen info on this.

Anymore leads where I can learn some more?

Edit/ i googled
I believe in my build thread ( Honey Badger build ) i have pics of the 2 side by side . I can take a pic tomorrow if needed
 
I’ve recently seen info on this.

Anymore leads where I can learn some more?

Edit/ i googled
Look in the mini truck threads here maybe, or google. Pirate was the place to find all the info back then. Its been 15 years at least since Ive done one, but in the SAS of mini trucks it was pretty common and a couple ways of doing it. Sky sold a "kit" that had everything needed to do it with a spacer behind the rotor I think and then used a mix of solid axle and IFS hub parts. I just pulled up his site, and this isnt the same "kit" I used back in the day, but seems like a newer/revised version as this stuff wasn't available for the last one I did. If you've never used his parts, they're VERY good, and great customer service. I just ordered their double shear, full hydro arms for my Dana 60 build and they are BEEF. Fast shipping also.

 
@matzell, just curious why going this route with the availability and affordability of aftermarket housings these days?
I would hate to have big money in an aftermarket housing. I may end up with a regular 60 series housing. This is not for a hard core build, it has 33's on it. If I go hard core, I will throw one of my Dana 60's up front. The ground clearance it within a 1/8=1/4" of the Toy 9.5 and a whole lot stronger as I already have all the 35 spline axles and lockers. I was trying to keep the weight down. I built the axle for my stretched40 project, here in the hard core section. That project has been stalled for several years. It is always changing in my head on what direction to go, so I leave it alone. Now it may end up with a set of 80 axles on it.

 
Even with 2 5/8 spacer on a fj60 housing it's still narrower thsn a 80 series. The ifs hub does make it wider but increases tire scrub significantly which is hard on trunion bearings and wheel bearings. The wheel bearings can handle it but youll have to replace trunnion bearings a lot. It also makes your steering get really hot offroad. I believe it makes the steering more prone to death wobble too.
 
Even with 2 5/8 spacer on a fj60 housing it's still narrower thsn a 80 series. The ifs hub does make it wider but increases tire scrub significantly which is hard on trunion bearings and wheel bearings. The wheel bearings can handle it but youll have to replace trunnion bearings a lot. It also makes your steering get really hot offroad. I believe it makes the steering more prone to death wobble too.

meh. ive not had any trunion issues with the ifs hubs. run a heavier offset wheel and it's a non issue. death wobble is almost 100% tires or incorrect caster.
 

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