need help on installing 4 bolts, SOLVED

[Terry Posten]

Referring to the factory service manual, it does look like that carrier is an LSD unit. The open ended carriers are more open and you can see more of the spiders but I am only looking at drawings. But you can clearly see the spots were you use feeler gauges to set the gear backlash.

Someone that is used to seeing these things apart needs to chime in.

 

[RedTwo]

Yep, looks like a viscous LSD unit to me, but darned if I can tell 3 from 4 bolt just by looking at the outside! Use some calipers to check the diameter of the shaft cavity? I've got a 4 bolt viscous unit sitting here that i can compare measurements with.

edit: I forget you guys don't get 4 bolt, 4WS LSDs over there /ubbthreads/images/graemlins/laugh.gif

 

[stealthtt24]

So does anyone know what I have, and why my driver side axle won't fit? /ubbthreads/images/graemlins/frown.gif I'd like to get this taken care of while I have down time, as I am waiting on SS brake lines and rear rotors.

 

[stealthtt24]

My lines and rotors came in. I'm at wits end with the rear end. Removed my passenger side axle just to look at it again. Longer spline is on the right side. I'm really at a loss here, greased up the spline and tried again, it will just not budge. I believe john (boostx) swapped some of the guts to keep 4ws intact, and I am not running 4ws. I would assume he swapped the right stuff over, but I don't see how that would affect me putting an axle in.

 

[Terry Posten]

Sorry, I have shot my knowledge load on this post already. If it was me, I would have called Chris Beran (BoostinHard) 30 minutes into the first issues but he is no longer on the board. maybe Curtis can help but the thing you may want to do is pull the center section out to get a good clear picture of what is blocking you.

If you do, snap more pics.

Sorry I can't help more.

 

[beaner]

The rear driver side axle on my 2g was just like that. I probably wrestled with it for 2 hours. It finally went in. I remember the frustration.

Quoting geno:
I did the differential on 1870 about a month ago. I lost my crow bar in the lawn somewhere out of anger... /ubbthreads/images/graemlins/frown.gif


The lawn mower will love it.

 

[Terry Posten]

You may just need to drop the drive shaft off of the diff input and spin the whole unit while trying to seat the d-side axle.

Take the d-side axle c-clip off, put the passenger side back together and bolt the tire on and kick it around with your foot while one hand is on the drive shaft input (spinning it) and one hand on the d-side axle. Spin everything while attempting to slide it home. If it falls in, remove the d-side axle without spinning anything and re-install clip and slide it back in.

Good luck.

 

[stealthtt24]

Driver side axle refuses to go in. Heres a video...

click

Picture of both axles, top goes in great into passenger, bottom will not. Thinking its a non lsd 4 bolt rear axle.

 

[stealthtt24]

Spline count is 19 on the passenger side and 24 on the driver side.

 

[RedTwo]

...I'm pretty sure they're the same number of splines.

I shall go count some to be sure.

A few dirty fingers later...
The smaller shaft on the end of the LSD axle (passenger?) does have 19 teeth, but the larger spline should also have 25.
The short axle spline should also have 25. (or 24 if you can count correctly /ubbthreads/images/graemlins/jawdrop.gif)

That photo makes it look like your axles are different lengths. It might just be where the CV boot is on the 'short' axle.

Your video makes it look like the axle doesn't even mesh with the diff gears! It looks like you can spin the axle freely once it's inserted into the oil seal.

Don't suppose there's anything in the drivers side of the diff? Like a rag? (just checking /ubbthreads/images/graemlins/grin.gif) Or a broken axle stub? /ubbthreads/images/graemlins/banghead.gif

 

[stealthtt24]

I will recount the driver side axle.

 

[mitsuturbo]

Quoting Terry Posten:
That is a 3 bolt diff. The brass ring on the right is for the PS pump.





That is absolutely a 4-bolt LSD diff with a 4ws drive gear put onto it in order to keep 4ws. I've done this procedure a few times.

This last round (there is a thread on it in tech), i had a hell of a time getting the Right axle in. I had to get the circlip placed in just the right spot and just give it a little tap-tap-tap-aroo.

 

[stealthtt24]

Thanks happy gilmore, ill advise on the splines count tomorrow.

 

[stealthtt24]

I counted 25 splines on the driver side...

 

[flag24]

I remember seeing this problem in a post in 2007 headed "Axles and Diffs" (I couldn't find it using a direct search). It seams like your dr side axle my be a JDM dr side rear lsd axle. Find post and you'll see what I mean. Good pics and an easy test by measuring the stub axle lenght.

 

[stealthtt24]

Time to start reading!

click

 

[stealthtt24]

As you can see, the axle is USDM, and I am now almost positive its the rear end. Still waiting on a local to contact me so I can go test fit this axle. Although, I could go to a guys house about an hour away, pick up the rear end he was going to sell me, and test fit the axle.

 

[stealthtt24]

With the help of a local, I finally got this resolved. The issue was the axle spline ends. They were messed up before I purchase them and we took a dremel and straighten them out now if it's like a glove.

 

[Terry Posten]

Good deal.