8-3/4 question

[zigs]

Were

all B-body 8-3/4 axles adjustable. if not what years were.

 

[kramer]

I believe all 8 3/4's were adjustable from the factory. Pre 65 ones were setup differently though.

 

[zigs]

So by my picture can you tell if this is pre 65 or not? Its out of a Belvedere. Previous owner said it belonged to his dad but didn't know what year , must have been detached from the car when he got it.

 

[BeepBeepRR]

There is only one adjuster on the passenger side. That side adjusts both sides.

Also the earlier 8.75 had a nut on the axle. The newer style has axles with no nut.

 

[kramer]

So by my picture can you tell if this is pre 65 or not? Its out of a Belvedere. Previous owner said it belonged to his dad but didn't know what year , must have been detached from the car when he got it.

Your adjuster setup is 65 and newer and like BeepBeepRR stated the pre 65 setup used a nut on the outside of the axle and I believe you had to use shims on the pre 65 setup to adjust the end play instead of the newer setup like you have.

 

[BeepBeepRR]

1964 and earlier would have had what is called a tapered axle. As I said before it would have a nut and a hub assembly.

65 and later would have Axles that slide in.

 

[oldkimmer]

The lock is supposed to be on the bottom stud. Kim

 

[zigs]

The lock is supposed to be on the bottom stud. Kim

That lock placement is wrong? Easy enough to switch. Thanks that helped a lot.
PS what s the axle lock for. Does it keep the axle from floating ?

 

[multimopes]

I believe it's to adjust the side to side shaft play,(lash)? There is a specified amount of allowable movement. I think it gets adjusted with feeler gauges. Not sure how much is recommended by Chrysler. It's been over 40 years for me. Good luck!

 

[JimKueneman]

The lock just keeps the adjusting nut from turning out of adjustment

 

[Darter6]

The 1966 Factory service manual states .013 to.023 for the axle shaft end play. Usually a dial indicator is used to set the clearance. Most just go by feel.

 

[hunt2elk]

Also doesn't matter which stud the adjuster lock is. Set your axle end play and put the adjuster on the stud where it fits best.

 

[moparedtn]

Is it just me, or do those flange nuts look like they're not getting much engagement on the studs?

 

[493 Mike]

Also doesn't matter which stud the adjuster lock is. Set your backlash and put the adjuster on the stud where it fits best.

I always found the adjuster lock positioned at 2:00 stud and held down with that washer head nut shown in #1 post on the 2:00 stud.
Yes, those adjuster nuts are not drawn down enough on the studs.
Mike

 

[zigs]

I always found the adjuster lock positioned at 2:00 stud and held down with that washer head nut shown in #1 post on the 2:00 stud.
Yes, those adjuster nuts are not drawn down enough on the studs.
Mike

I had already backed nuts off , thought I'd better ask the question before I got too far along.

 

[oldbee]

The 1966 Factory service manual states .013 to.023 for the axle shaft end play. Usually a dial indicator is used to set the clearance. Most just go by feel.

Dial indicator is best; after you set it and try the end play, you’ll feel it move but not really see movement(if that makes sense).

 

[Phil Hall]

It's also a good idea to whack the axle ends during adjustment checks to make sure everything is seated before you button it up.I use a Snap-on deadblow plastic faced 2 lb hammer.Don't beat the hell out of it.