Land Cruiser axles & 3rd members

[AlexJet]

Was wondering if Land Cruiser 3rd members are interchangeable throughout the models. Can 60-series diff be used on 80-series axle?

Does anyone knows what is WMS to WMS (Wheel Mounting Surface) on the 80-series?

 

[js93cruiser]

Yes they are all interchangeable. 80 series castings are the strongest though

 

[mmml4]

Does anyone knows what is WMS to WMS (Wheel Mounting Surface) on the 80-series?

IIRC 63-1/2"

 

[jynx]

The 80 series fronts are a high pinion 8" and will not interchange with any of the other diffs.

The 9.5" rears are the same thru the years.

 

[AlexJet]

Does the 80-series rear axle has a rear cover?
60-series does have it. It used to install the C-clips on axle shafts when the are inserted into the 3rd member.

I have 187c-152a Detroit locker in the 60-series diff. Can I used it with "snap-ring" design axle shafts instead of "c-clip"?

 

[OGBeno]

Does the 80-series rear axle has a rear cover?
60-series does have it. It used to install the C-clips on axle shafts when the are inserted into the 3rd member.

I have 187c-152a Detroit locker in the 60-series diff. Can I used it with "snap-ring" design axle shafts instead of "c-clip"?

No cover on 80 series axle.

 

[AlexJet]

No cover on 80 series axle.

So, would my 3rd member with Detroit work in 80-series axle?

 

[Pin_Head]

Yes. You can install full float axles in a semi-float C-clip differential, but not necessarily the other way.

 

[cody c]

Yes. You can install full float axles in a semi-float C-clip differential, but not necessarily the other way.

That sounds backwards.

A c-clip differential should work in a FF application no?

Also, the pinion flange on the 60 diff is different than an 80 diff.

I have a 60 SF bolted in my 80 rear housing right now, but I had to swap ends of the driveshaft as well. In other words I have an 80 driveshaft that has the small slip end swapped from the 60 driveshaft in order for it to mate to the 60 differential.

I cant remember if there was a reason why I didnt drill it, maybe the shape of the cup on the pinion flange of the 60 series pinion flange wouldnt play nice with the 80 driveshaft. I forgets...

Someone should make a universal pinion flange like there is for mini trucks. Hello, TG, marlin anyone!

 

[AlexJet]

The thing I'm trying to achieve is:
I have the 60-series axle which I want to replace with 80-series, but would like to keep the 60-series differential as its already build with new gears and Detroit.
My main concern was that my 60-series axle has a diff cover which allow me access to the locker and ability to put C-clips on axle shafts. Moving the diff to 80-series means I would not be able to use C-clips as 80-series does not have the diff cover. On other hand 80-series axle shafts are most likely have snap ring at the ends and just clicks in to the diff housing.
This is where the question lies. Would I be able to use snap-ring style (pushed-in or whatever they called) axle shafts with my differential?
I hope it should not be a problem as snap-ring axle shafts should not be different from C-clip in that aspect.
Do I make right assumption and all this going to work out?

 

[cody c]

If there is no cover then it should be a full float. If its a full float you dont need to open the housing to get at c-clips, because you just pull the shafts out at the hub.

The earlier 80's had SF's (91&92), the full floats keep the axle shaft in place because of a flange at the outside of the shaft which bolts to the hub, so no inner clips or rings needed.

Snap rings are only on the shaft that goes into the birf as i understand it.

 

[Cruiser Corps]

The thing I'm trying to achieve is:
I have the 60-series axle which I want to replace with 80-series, but would like to keep the 60-series differential as its already build with new gears and Detroit.
My main concern was that my 60-series axle has a diff cover which allow me access to the locker and ability to put C-clips on axle shafts. Moving the diff to 80-series means I would not be able to use C-clips as 80-series does not have the diff cover. On other hand 80-series axle shafts are most likely have snap ring at the ends and just clicks in to the diff housing.
This is where the question lies. Would I be able to use snap-ring style (pushed-in or whatever they called) axle shafts with my differential?
I hope it should not be a problem as snap-ring axle shafts should not be different from C-clip in that aspect.
Do I make right assumption and all this going to work out?

There aren't snap rings on 80 series axle shafts. They just slide into the diff, and bolt to the hub from the outside, thus no removable rear cover. No need for it.

Your 60 series axle shafts will not work with the 80 series housing. You can use the 60 series 3rd member, but will have to use 80 series axle shafts with the 80 series housing.

-Josh

 

[Delancy]

-Josh

Turtlehead.

 

[AlexJet]

If there is no cover then it should be a full float. If its a full float you dont need to open the housing to get at c-clips, because you just pull the shafts out at the hub.

The earlier 80's had SF's (91&92), the full floats keep the axle shaft in place because of a flange at the outside of the shaft which bolts to the hub, so no inner clips or rings needed.

Snap rings are only on the shaft that goes into the birf as i understand it.

I have 2 4Runners with no diff cover rear axles, but they are not FF. the shafts have "snap ring" at the end and when you push it into the diff the pass the splines there and snap ring holds the shaft from sliding out. Then the wheel bolting to the axle shaft flange. Another thing holding the axle in place is the brake bracket. I thought 80-series may use the same method if it does not have the cover. I don't remember seeing spindles on the rear of Canadian 80-series and LX450s.

 

[AlexJet]

There aren't snap rings on 80 series axle shafts. They just slide into the diff, and bolt to the hub from the outside, thus no removable rear cover. No need for it.

Your 60 series axle shafts will not work with the 80 series housing. You can use the 60 series 3rd member, but will have to use 80 series axle shafts with the 80 series housing.

-Josh

80s axle is wider, so 60-sereies shafts would not work, plus the offset is different.

 

[cody c]

I have 2 4Runners with no diff cover rear axles, but they are not FF. the shafts have "snap ring" at the end and when you push it into the diff the pass the splines there and snap ring holds the shaft from sliding out. Then the wheel bolting to the axle shaft flange. Another thing holding the axle in place is the brake bracket. I thought 80-series may use the same method if it does not have the cover. I don't remember seeing spindles on the rear of Canadian 80-series and LX450s.

Your talking about 4runners/mini trucks, they keep the SF shaft in place with a plate/bearing clip at the outside of the axle instead of the inside of the axle with C clips like the 60 series.

No cruiser I know of has the outer retaining bracket, only SF with C clips or FF which have a spindle and bearings and keep the shaft bolted to the FF hub.

If there is no access cover on the 80 then it is a full float and you dont need to worry about keeping the shafts in place, they are bolted to the hub, and the hub is held in place by two wheel bearings bolted on the spindle.

 

[Douglas S]

Your talking about 4runners/mini trucks, they keep the SF shaft in place with a plate/bearing clip at the outside of the axle instead of the inside of the axle with C clips like the 60 series.

No cruiser I know of has the outer retaining bracket, only SF with C clips or FF which have a spindle and bearings and keep the shaft bolted to the FF hub.

If there is no access cover on the 80 then it is a full float and you dont need to worry about keeping the shafts in place, they are bolted to the hub, and the hub is held in place by two wheel bearings bolted on the spindle.

I don't think 80 Series semi float axles have removable covers.

 

[jynx]

1991 and 1992 FJ80's came with semi-float axles which had an inspection cover and c-clips to retain the axles. 93-94 mostly had FF with a few SF mixed in. 95-97 were all FF.

The OP's 9.5" from his 60 should bolt into either a SF 80 or FF 80 rear axle. The 9.5" chunk will bolt into either one the splines are the same. The axle retention method is different but should work in the 80 housings.

I swapped the SF in my 91 for a FF from a 97. I had the 97 FF chunk set up for the SF before I decided to rebuild the FF. The only difference is that the gears in a SF axle have to be clearanced for the cross-pin.

 

[Cruiser Corps]

Turtlehead.