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rotor/ hub help!

73redblaze

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1st problem solved, 2nd question, the hub won’t go past the wheel bearing, is the wheel bearing supposed to go into the race inside the hub? For some reason it stops just before the race but does not sit in it. It’s the same size wheel bearing I used in my drw hubs. Any suggestions?
 
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1st problem solved, 2nd question, the hub won’t go past the wheel bearing, is the wheel bearing supposed to go into the race inside the hub? For some reason it stops just before the race but does not sit in it. It’s the same size wheel bearing I used in my drw hubs. Any suggestions?

The inner wheel bearing should be installed into the hub (on the bearing race) and then the wheel hub seal installed. Now the whole assembly should slip onto the spindle and you place the outer wheel bearing on the spindle and adjust the wheel bearing to the proper spec.
 
the inner wheel bearing wont go far enough in and it leaves a gap between the rotor and the dust shield about 3"
 
the inner wheel bearing wont go far enough in and it leaves a gap between the rotor and the dust shield about 3"

Did you replace either the hub/rotor assembly or the spindles?

Sounds like you have a mismatch of bearings and spindles. The 1st design spinles use an inner bearing with an ID of 1.75" while the 2nd design used an inner bearing with an ID OF 2" so if i'm correct you would be trying to install a 1st design bearing onto a 2nd design spindle. The outer wheel bearing were the same between 1st and 2nd design.
 
i replaced the hubs and rotors and wheel bearing while keeping the same spindle. so i need a larger ID bearing to fit the slightly bigger spindle?
 
i replaced the hubs and rotors and wheel bearing while keeping the same spindle. so i need a larger ID bearing to fit the slightly bigger spindle?

Go measure the spindle where the inner bearing would ride and then also the ID of the inner wheel bearing. I'll bet that if you bought the hub/rotor assemblies and bearings for your 73 that someone in the past has upgraded the spindles to the 2nd design which used the larger bearings. If this is the cae I would return the hub/rotor assemblies and buy the ones for 2nd design along with the proper bearings rather than trying to replace the spindles. Also the inner wheel bearings DO NOT interchange between 1st and 2nd design so you CANNOT simply change bearings to make it work.
 
i think the axle is out of a 84 and im almost sure the hub is around the same year. is it possible that i only need a bigger bearing? let me take some measurments
 
I know for a fact that the hubs are different between 1st and 2nd design and the bearings DO NOT interchange because of the diameter difference. If this is the issue then you either need to find the early spindles or get the correct hub/rotor assemblies AND bearings.
 
the inner bearing is 2.25 ID there is two tapers on the spindle. the inner bearing is stoped by the second lip on the spindle. the inner bearing does not sit inside the race of the hub, it hits the lip
 
I'm betting its the wrong bearing, maybe bearing and hub, but something about that picture looks suspicious.
The spindle looks nice and shiny except where you are trying to put on the bearing. It looks blue. Any chance the old bearing spun on the spindle and galled it?
Actually, it looks like the inside part of the old bearing is still on there......

Don't suppose you have the old bearings to get numbers off of?
 
yea i have the old bearing and its all in tact, so thats not it. It just seems like the bearing needs to be a smaller OD to fit inside the race in the hub
 
yea i have the old bearing and its all in tact, so thats not it. It just seems like the bearing needs to be a smaller OD to fit inside the race in the hub

Ok, I got into my catalog and here are the part numbers and specs for the inner hub bearings and races.

1958-1977
Inner bearing LM603049 (bearing ID is 1.7812" and the width is .7812")
Inner race LM603011 (race OD is 3.0625" and the width is .5973")

1977-1991
Inner bearing LM104949 (bearing ID is 2.0000" and the width is .8750")
Inner race JLM104910 (race OD is 3.2283" and the width is .6693")

As you can see you CANNOT interchange the bearings between the years and 1977 was the transition year so it could be either style of hub.
 
I would suggest cleaning and polishing the bearing surface on the spindle and then try fitting the bearing.

There is no reason now that he can't figure out if he has wrong parts armed with the info I gave in my last post. Since he swapped a hub/rotor assembly and bearing we already know that the spindle isn't damaged enough that a bearing wont go back on the spindle so he obviously has some wrong parts.
 
Ive got a 87 10 bolt bearing on a supposed 75 76 d44 spindle in front of me. Correct me if I'm wrong but didn't big bearing early d44s have large bearings like the laters?
 
There is no reason now that he can't figure out if he has wrong parts armed with the info I gave in my last post. Since he swapped a hub/rotor assembly and bearing we already know that the spindle isn't damaged enough that a bearing wont go back on the spindle so he obviously has some wrong parts.
I'm not questioning your post. I'm just saying the spindle needs to be cleaned and polished BEFORE trying to fit a bearing. I am amazed at how many "it won't fit" posts there are and then a pic of a part that is covered in grease, rust, and maybe damage.
Sorry for ruffling your feathers, that was not the intent. But it will not happen again.
 
Ive got a 87 10 bolt bearing on a supposed 75 76 d44 spindle in front of me. Correct me if I'm wrong but didn't big bearing early d44s have large bearings like the laters?

There are only two different spindles, small bearing 1977-earlier and big bearing 1977-later. The mid year later (1977) D44 used the big bearing spindles.
 
There are only two different spindles, small bearing 1977-earlier and big bearing 1977-later. The mid year later (1977) D44 used the big bearing spindles.


Have you ever had an external hub 3/4 d44 apart to confirm that? I've heard it both ways. Makes me want to tear apart my buddies 76 lol.
 

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