Front Hub Replacement

[Steve Huneck]

I am about to install new front hubs on my BJ7 (the splines are like a knife edge). My service manual says to remove the grease retaining cup with the extractor provided in the tool kit. I don't have one, and I'm wondering if vise grips are an alternative. I don't mind buying the correct tool if it is possible and/or needed.
I am also wondering if there are any 'gotchas' to this whole operation that should have me worried.
Any additional comments or advice are very appreciated.
Thanks,
Steve

 

[TimK]

Check out Moss Motors:
https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=53719

you can probably get the cap off with your existing tools (screwdriver, visegrips, etc. I did this 20 years ago, but don't remember any problems on my BN7. I don't have a special tool.

 

[GregW]

Hi Steve,
The grease cap has a threaded rod which the tool screws into. If you use vise grips, you'll have to use that method until you replace the cap. Basically, you'll destroy the threads. There are a couple parts numbers for the cup, I'm not sure if they all have the same treads or not. My BJ8 has a 5/16"-24tpi thread. You could make a tool at the local hardware store out of a coupling nut and some all-thread.

 

[Randy Forbes]

I just did this, if you want to look at pictures of the process: https://www.rfdm.com/gallery/album170

The "meat" of the installation starts here: https://www.rfdm.com/gallery/album170?page=6

I made up this tool to drive the cup in (now) and remove it (future). I'll have to add a large washer or cup to straddle across the opening. To confirm Greg being correct (yet again, so boring...) it is a 5/16 x 24 bolt.

 

[Genos2]

I used a nut that's about 3"long from a MGB, I think it was a spacer(attachment point) between the head stud& the line for the air injection lines from the air pump. Still have it& works great. cheers Genos2

 

[big6]

I use a short 5/16 - 24 coupling nut, 5/16 - 24 all thread, fender washer(s) and a 5/16 – 24 nut. Reinstalling simply use the coupling nut screwed to the dust cap and gently tap on the coupling nut with a brass drift. I got the short 5/16 – 24 coupling nut at Fastenal.

 

[Steve Huneck]

Gentlemen - thank you very much. Randy, those pictures are fantastic, I feel like I have already done the job.
One more question; I think I am still on topic, I need to order the bolts from Moss Motors, and while I am at it, I wonder if I should order a bunch of shims as well? Any thoughts?

Steve

 

[Randy Forbes]

Yes, get the shims!

Be aware: there are different size shims. The early cars, up to the point of the combined spindle/brake caliper mount, use the larger diameter shims, and the later cars use the smaller ones.

I ordered the "shim assortment" which was lost in the mail, and when I asked for another set, I received the small (wrong) ones. You'd be wise to order them individually to make up your own shim kit.