Temporary centered 40 axle question (1 Viewer)

[69LC]

As I slowly work on getting my wife’s 80 back up and running my head keeps leading me to future work on my 40.

I have a 14b that I started working on years ago that I will eventually have under my rig. In the meantime I’m wondering what I could do with some of the extra 40 rears I have and some early mini truck housing axle tubes to create an approximate 58-59” wms quick centered axle.

Could I use 79-85 2wd mini truck tubes and 86+ 4wd rear shafts to work with a 40 diff to get a quick and dirty wider-centered 40 rear until I can get the 14b in there?

Are the wheel bearing ends the same between the 2wd and 4wd Yota truck axles?

Just thinking about what’s easily available in local junkyards and stupid cheap.

 

[cruisermatt]

this is an Fzj80 center and IFS rear axle tubes, but same concept.

Project Space Shuttle - 5.0 powered '84 FJ60 on Coilovers

Project Name: I was trying to think of a good title for my 5.0-powered FJ60 with 14 inches of travel. Since it's white, from the 80s and I intend on testing its suspension at the San Jose International Airport arrivals terminal speed bumps, the name fit. The FJ's background: I herd autistic...

forum.ih8mud.com

 

[cruisermatt]

stolen from Facebook. I think it needs a plate to keep the diff mounting face square to everything else but a pretty good axle jig for cheap

 

[69LC]

Nice!

 

[too tall]

That axle jig makes no sense. The cruiser pumpkin is bigger, therefore the axles tubes need to be pushed out wider to accommodate the difference between the two. Am I missing something does it slide out wider when you put the bigger third housing in? You don't need a jig to make a centered rear cruiser axle. I have done quite a few with and without an alignment bar. So long as you measure lots and tack evenly until its solid then weld it out slowly adjusting weld areas to avoid warping. Better to start with a first gen toyota housing as the tubes slide right inside the cruiser housing and use the shafts from an IFS rear axle. Woody used to have a good writeup on here.

 

[69LC]

Thanks @too tall

You directly answered my question.

 

[cruisermatt]

That axle jig makes no sense. The cruiser pumpkin is bigger, therefore the axles tubes need to be pushed out wider to accommodate the difference between the two. Am I missing something does it slide out wider when you put the bigger third housing in? You don't need a jig to make a centered rear cruiser axle. I have done quite a few with and without an alignment bar. So long as you measure lots and tack evenly until its solid then weld it out slowly adjusting weld areas to avoid warping. Better to start with a first gen toyota housing as the tubes slide right inside the cruiser housing and use the shafts from an IFS rear axle. Woody used to have a good writeup on here.

I’m not super familiar with the 8” stuff but I can’t imagine the distance between the side gears being THAT much different between the 8” and 9.5” thirds. The jig seems pretty logical to me.
Also I’m pretty sure the guy that made it was just using stuff he had lying around.

 

[matzell]

This has been done for the past 25 years.

 

[too tall]

I’m not super familiar with the 8” stuff but I can’t imagine the distance between the side gears being THAT much different between the 8” and 9.5” thirds. The jig seems pretty logical to me.
Also I’m pretty sure the guy that made it was just using stuff he had lying around.

Sorry but you are wrong. If you have a center block or Locker of some sort, the axles will not fully seat where the retainers are. The depth of the axles into the side gears needs to be set when the new third is married to the housing tubes.

 

[cruisermatt]

Sorry but you are wrong. If you have a center block or Locker of some sort, the axles will not fully seat where the retainers are. The depth of the axles into the side gears needs to be set when the new third is married to the housing tubes.

Good to know. Thank you for correcting me on that. Makes me wonder what the builder of that axle in the pics I posted did. Or if he’s in for a surprise.

 

[69LC]

While taking a break from finding bits of the wife’s 80 to reassemble it, I actually found an early mini truck or 4Runner rear end today-ready for picking!

The guy agreed to $50.

I didn’t get any ticks either!