1969 B body rear assembly problems HELP

8 3/4 3.55 - assembly - left axle has about 1/8 play - do both axles have a button on the end ? this one doesn't and I cant remember how it came out - or did I do something else wrong - any help?

The suregrip has the 2 buttons connected with a roll pin. A non sure grip pig would have the round shiney "flats" that the axle ends butt against.

So did I put the wrong axles with the suregrip or is the problem in the suregrip itself ? The right side fit right ? are there any diagrams you know of this showing what I need to do

You can swap sure grip & non sure grip pigs & nothing changes on the axles so it would have to be non axle related. I would look in & see if the button is there on the offending side. You are adjusting the threaded collar on the one axle & still not enough? EDIT I've seen two different thicknesses of the white foam gasket that goes between the axle flange and the b plate, the eBay ones ($9.95 for 2 foam/2 steel iirc) are a weak 3/16" thick & iirc the felpro ones are much thinner (I cant find em at the moment).

The axle that isn't sitting right has no buttone - just the end of the axle with a small hole

looking in, there is no button on the pig?

The "button" is in the carrier. You will need to use a flashlight and look into the spot the axle spline slides into. There will be the "button", shiny or a hole.

Ill check - should there be a little plate on the tip of the axle?

How do I post a pic?

nothing on the splined tip of the axle, it is cutoff square with a slight chamfering around the perimeter, just the shallow hole in the center for when they chucked it up in the lathe to machine the shaft.

What case is the center section, 742, 489? 489 would have a piece in there, open or sure grip, but a 742 has the button as mention that will come out.

Is there any chance the button fell off and is floating around ?

A clutch type center would fit in many different carrier housings. I have had a early clutch type in a 489 case, so that is not a guide. The OP needs to look or have sometime "in the know" look and figure out if there is something missing. We are assuming there is an adjuster on one axle. We are assuming there are still tapered bearings on the axles. We are assuming the installed axle is seated. Too many variables right now.

True but it's a good start to figure out the issue... It would be the first thing I would check.

May have found the problem - one axle is 1/4 shorter then the other - buttons are in place - the axles should be the same height right? They must have got mixed up in storage

scratch that - they are both 29 1/4

I wouldn't think there is another app that has axles that close to B body dimentions. compare the bearing/adjuster plate, the items at the outer end of the axles, their spacing on the axle & see if you see any discrepency. are you using the thick or the thin white foam seals? If I can find my thin felpros' I will measure them compared to the thick eBay ones I (also) have.

489 case

I talked with the guy working on this and he said when he adjusts the right side it has no effect on the left

- axles 29 1/4, buttons in place, 489 case, any ideas ?

Early 8 3/4's, with two piece axles, do have different lengths between SG and non-SG applications. But that's not what the OP has (I hope).

What sure grip do you have , the case don't matter unless you know for a fact that it has never been messed with .

489 would have come from the factory with a Cone type , no buttons , just a thrust block that can't fall out.

Clutch type has buttons and they can fall out when the axles are pulled, the roll pin is an assembly aid , after many thousands of corner turns it will eventually break , it's not a potential problem till an axle is pulled.

What sure grip does it have ?

It came out of a 1971 cuda - 3.55 - unmolested - 489 case

Different length axles for open and SG are 1964 and older with the tapered axle & nut.

Then it's a cone type ... No buttons, just a thrust block that can't come out unless the sure grips is completely disassembled.