Which free wheel front hubs will fit post 4/94 FZJ-80 without modifications?

[Kernal]

Best I can determine from reading through a bunch of old threads on this subject it appears that the Toyota/Aisin 43530-60042 free wheel hub is a direct bolt on to a US spec FZJ-80 that was manufactured ~5/94 onward with the longer 246.5mm birfield stub shaft. Can someone confirm that is the only free wheel hub that will fit without modification? Does anyone know if the mounting holes on this hub are the correct diameter for the stock FZJ-80 hub studs, or are they larger??

 

[sdnative]

Possibly the only Toyota/Aisin hub. I have the AVM hubs from Marks or Slee that came with my part time kit.

 

[Kernal]

Fixed my post; the part number is a Toyota/Aisin hub.

 

[kidglove13]

I think you can get an Aisin hub for the 80 through toyota that requires no modification but IIRC they are like $400 or something crazy like that if you can get them.

Besides that there are no Aisin hubs that you can get that will not require either the shorter birf pre 94 or machining a new ring groove in your current birf stubs

All toyota Aisin hubs have the same bolt pattern, IFS hubs are 27 spline and solid axle hubs are 30 spline which is what you need for an 80

I run 60 series Aisin hubs and I cut a new ring groove in my birf stubs

 

[OGBeno]

Best I can determine from reading through a bunch of old threads on this subject it appears that the Toyota/Aisin 43530-60042 free wheel hub is a direct bolt on to a US spec FZJ-80 that was manufactured ~5/94 onward with the longer 246.5mm birfield stub shaft. Can someone confirm that is the only free wheel hub that will fit without modification? Does anyone know if the mounting holes on this hub are the correct diameter for the stock FZJ-80 hub studs, or are they larger??

Other way around.

The -60042 is the non-US free wheel hub with the correct scalloped body that fits the 80 series 8mm studs and hub.

They are a direct fit for 4/1994 and earlier 80 series rigs with the 238.5mm length birfs. The later ones at 246.5mm have to either have new snap ring channels machined in, or you can get the earlier birfs and put them in: 43405-60120

 

[Kernal]

Beno: I found this cross-reference FWIW. Thought there might be one that would fit unmodified to the later years??

 

[OGBeno]

Negative. I've got that same .pdf

The -60130's are for the 10mm studs but the birfs are the same length as the earlier 1991-1992 birfs at 238.5mm.

The option explained above is pretty much the only way to do it.

 

[LandCruiserPhil]

Warn hubs will work on late models without the additional groove

 

[Kernal]

So the part-time 80's used the shorter birf, the 105 series hubs will not fit the longer birf, and none of the 70 series will bolt up? Is that about it? I read one thread at the Pirate web site where someone used a small spacer inside the free wheel hub, but then the dial would not go on with the lock ring, IIRC. Also read that maybe some early 40 and 55 series "tall" hubs might work, or is that with the shorter birf also?

I wanted to stay with AISIN hubs.

 

[OGBeno]

Warn hubs will work on late models without the additional groove

Um...no way im putting warn junk on my rig except a winch....

IIRC, you are running Aisins.

 

[OGBeno]

So the part-time 80's used the shorter birf, the 105 series hubs will not fit the longer birf, and none of the 70 series will bolt up? Is that about it? I read one thread at the Pirate web site where someone used a small spacer inside the free wheel hub, but then the dial would not go on with the lock ring, IIRC. Also read that maybe some early 40 and 55 series "tall" hubs might work, or is that with the shorter birf also?

I wanted to stay with AISIN hubs.

Kernal: long and the short of it is this. There is a "long" bodied manual hub from the FJ55 IIRC, 1978-1979. That would work on the shorter 238.5mm birf. They are very difficult to find (they are labelled "ASCO"= Aisin Seiki Corp).

The 7x series in the 90's used the -60042 hub which is the same as non-US 80 series rigs. I run these. These are for 8mm hub studs and 238.5mm birfs. The 7x and 8x rigs outside of US with manual hubs came with the 43405-60120 birfs which are 238.5mm in length...same as 1991-1992 rigs without ABS.

The 105 series upgraded to 10mm hub studs and different manual hubs (-60130) to accommodate the size. The 7x of the same time period also upgraded. You would need to machine new holes to accommodate the larger 10mm studs, along with new hardware, to make the -60130 hubs work. They will not work on the 8mm studs--too big.

Those vehicles never came with longer (246.5mm) birfs. Only full time 80 series rigs got those.

 

[bmwjnky]

I'm new to 80's so I'm sorry if this has been discussed but how about an 8mm spacer between the hub and flange with longer studs?

 

[Kernal]

I've read that others have done that, either put a spacer on the hub or between the spindle and knuckle IIRC, but haven't actually seen it in person or in photos.

 

[LandCruiserPhil]

I'm new to 80's so I'm sorry if this has been discussed but how about an 8mm spacer between the hub and flange with longer studs?

I've read that others have done that, either put a spacer on the hub or between the spindle and knuckle IIRC, but haven't actually seen it in person or in photos.

Seems like a lot of work to avoid doing it the right way.

If you are looking for the easy way out many have used a cut off wheel to cut the groove without removing the axle.

 

[LandCruiserPhil]

Um...no way im putting warn junk on my rig except a winch....

IIRC, you are running Aisins.

No worries Toyota put them on for you if you owned a 40

Warn has a better record then 1st gen AVM hubs, just say'n

Yes I run Aisins purchased used from some MUD guy no telling what he did to them:

 

[hawaiicruz]

IIRC the AVM hubs had some sort of spacer so you could run the longer birf. I didn't need it because my 94 has the shorter birf.
I do think the AVMs are junk though, one of mine falls to pieces every time I remove it. I'm currently on the hunt for Aisins

 

[ttubb]

IIRC the AVM hubs had some sort of spacer so you could run the longer birf. I didn't need it because my 94 has the shorter birf.
I do think the AVMs are junk though, one of mine falls to pieces every time I remove it. I'm currently on the hunt for Aisins

Do you have the new heavy duty model or the earlier model? My understanding is the heavy duty is forged and the earlier model is cast.
I just had Slee install the P/T kit and it had the heavy duty versions (stamped on the box). There was a strong warning about not packing the AVM hub with grease as it will push out the selector, oil only.

I do agree these AVM hubs look a bit lighter than Aisin/Warn. In addition, the warranty states if you have aftermarket lockers (I have ARB lockers) they will not warranty the hubs. Sort of tells you something, doesn't it?

BTW, I carry the original full-time hubs in the AVM box in my cruiser in case one AVM fails on the trail.

 

[hawaiicruz]

Do you have the new heavy duty model or the earlier model? My understanding is the heavy duty is forged and the earlier model is cast.
I just had Slee install the P/T kit and it had the heavy duty versions (stamped on the box). There was a strong warning about not packing the AVM hub with grease as it will push out the selector, oil only.

I do agree these AVM hubs look a bit lighter than Aisin/Warn. In addition, the warranty states if you have aftermarket lockers (I have ARB lockers) they will not warranty the hubs. Sort of tells you something, doesn't it?

BTW, I carry the original full-time hubs in the AVM box in my cruiser in case one AVM fails on the trail.

I'm guessing mine are the early ones. I also carry my drive flanges just in case

 

[js93cruiser]

Avm's are absolute junk I shattered mine into pieces before I got to buck island on the rubicon the first time out, switched to aisns with chromo hub gears and never looked back

 

[Kernal]

All good information. OK, for the AISIN options, consolidating from above:

The -60042 free wheeling hubs will work with the shorter birfield CV joints, no modifications needed.

With the longer birfs you have to machine a new lock ring groove 8mm further up the stub shaft of the birfield in order to use the -60042 hubs.

With the 105 series free wheeling hubs (-60130) you can keep the longer birfields but you must first tap the stock 80 hubs for the larger 10mm studs required by the -60130.