Because of this potential hazard, it is important to check up on these seals and take action when you see some oil leaking around that general vicinity. The housing was purchased totally bare with no axles, seals, or center section let alone brakes and brake lines. The first step is to identify if you have a large bearing or small bearing axle since there were a few different 9 inch housings made.
Yes, it looks quite ugly. It will fit 31 spline axles, just be careful with installing the thicker axles as they can damage the seal. Once you determine what you axle have and have purchased your seals, find a large socket that is about the same diameter of the seal.
If you had used a 10 mual,. Ya would have had enough force with , one smack. Joined: Sep 12, Posts: 43, Profile Page. Sometimes you have to wrap 'em sometimes you don't.
Two things to think about one is to make sure that the splines are lined up before you start beating on them and the other is if the axle tags the cross shaft. If the axle is the right length it should not tag the cross shaft.
More often then not the axle bearings that I use are pressed on the axle and slide in and out of the housing with the axle so it is easy to tell if I am deep enough, when the bearing seats I am good. I have yet to tear an old one down that didn't take a slide hammer or a piece of chain about 6' long to get the axles out. Even when we were racing and made gear changes a lot it seems like the axles always needed a little persuasion to come out of the housing.
Heres is a picture of a sealed 9" ford axle bearing. There is no seal inside the tube. There is no grease. Yeah, that's a picture of a bearing, and it might be one that is used in some Ford rear ends Like what I have in the Summers Bros. From the 69 ford truck shop manual: and the replacement bearing that you can buy from an auto parts store: this is the setup I have in the 57 ford wagon 9" rear in my Chevy II. The bearing is sealed to keep the grease in the bearing. The seal in the end of the axle tube keeps the gear oil in the housing.
If you want to see a common application of the sealed bearing with no seal in the axle tube, look at Chevy full size cars. I have to change yet another one of those stupid things in my brother's 58 wagon this week. They suck Joined: Dec 30, Posts: 1, Profile Page.
Sure looks like there's a seal on the axle to me. Of course this isn't one of those fancy 9 inchers with the o-ringed bearings. Miller , Nov 18, That'll do it. Joined: Jun 8, Posts: 9, Profile Page. But very few are If it takes multiple big whacks to seat the axle more than , then the housing is bent too much and shortened bearing life can be expected 5K miles or less ; I learned this one the hard way.
The only fix is to have the bearing ends cut off and rewelded on straight. I installed an aftermarket sway bar on a OT car after having the housing narrowed. Freshly installed, the axles slid right in by hand. But the sway bar mounted to the housing with the links to the body not the other way around which is how Ford mounts their bars and heavy cornering warped the housing.
After having the housing straightened for the second time, we figured out the problem. Crazy Steve , Nov 18, Joined: Sep 21, Posts: 2, Profile Page. If I may, Are the 8" ford rears similar? The 5 lug 8 inch is identical to the small bearing 9 inch with sealed ball bearings.
I've never had any of the 4 lug ones apart. Joined: May 3, Posts: Profile Page. There is an old engineering rule of thumb in bearing application.
It says"the race that rotates gets the press fit" On your application the axles should slide into place with a minimum of interference. As a countercheck, turn the axles by hand. If there is resistance in one particular area your bearing is in a bind.
Buckster , Nov 19, Joined: May 27, Posts: 2, Profile Page. Aftermarket bearings install by Moser use the OEM seal in the housing and an oring on the outer race to seal the housing also. Check for this oring it could just be as simple as a little lube on the oring and it will go completely home in the housing. Did you clean up the housing bore with sandpaper to remove rust scale, etc?
OJ, there are applications, like Squirrel said, where a sealed ball bearing does not use the internal seal but not from the factory. Aftermarket, larger diameter axles usually omit the inner seal because it just would not work with the thicker axle. They also use the outer o-ring around the bearing to contain the gear oil and the seals on the bearing themselves are different, more robust.
I had a set of 35 spline Mark Williams axles in one of my drag cars that used the setup. But when using OEM type parts, all 8 and 9 inch axles with ball bearings should have an inner seal. Last edited: Nov 20, Joined: Jun 12, Posts: 46 Profile Page.
I just Bought a new housing and axles from 9 inch factory, and there is a seal the goes in first to keep the gear lube in the housing and the bearing is sealed, mine also has a o ring on it. I replaced my bearings with some from Speedway, and I just this week found out the 'wedding ring' is twice as wide as a stock Ford one.
Also there is an O ring around the outside of the main bearing, so I'm assuming the idea is you don't install the inner axle tube seal, as it won't fit with that wider wedding ring.
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