Thread: Which rear Hub?

I think the spacer indicates that the axle is from a S2, the S1 half-shaft being shorter; the short bolts explains why they snapped.

Why do you think that the hub is U/S? You should be able to turn the broken stud with the drill bit in it, with a sharp centre punch and hammer. Hold the hub in a vice and strike anti-clockwise around the periphery of the stud; this should work seeing how oily it has been,

Cheers Charlie

Series 1s did not have fully floating shaft rear axles.

To aid changing axles more easily some people put in fully floating shaft rear axles from later series vehicles. This allows the use of series axles which are longer than series 1 axles - hence the spacer to move the hub out a bit to engage the series 2 axles.

As Charlie has said - just fix what you have and put in longer bolts - there are plenty of Series 1s running around with the arrangement you have - it works well and is easier to change axles if the need crops up.

Garry

Originally Posted by Jcrowe69

Hi All,
I finally got my S1 registered last month, full NSW rego and already have done over 1000 miles just running around, it was last registered in 1991 as JOC 330 and if anyone has any info about its history it would be much appreciated.
Anyhow as to be expected a few niggles have surfaced and the rear hub is the current issue, it has a fully floating shaft rear axle and when I bought it there where only 5 bolts in it as the sixth had a broken stud in it, got that out with an easy out and put the correct bolt in. After running around it started leaking oil and when I pulled the bolts, 5 of the 6 where snapped! I got two out by drilling and using the easy out, then the drill bit snapped and now I think the hub is stuffed.
After looking at the manual and seeing what I had, I have a spacer half inch wide between the hub and driving member, so the right bolts are actually half an inch too short!!
Does any one know if this is a standard S1 rear axle and the spacer is something to use later axles shafts? Once we solve this mystery, does anyone have a rear hub assembly sitting around as I've stuffed mine!!
I've attached a couple of pic's....
Cheers
Jason

hi standard 1957 si had fully flooating axles jim

Thanks for your replies guys, I'm planning to keep the set-up but have mangled the hub, I have three clear good holes, two which the drill wandered to the side drilling the stud so the easyout won't move whats left and the last hole the drill bit has busted in the remnants of the stud, I like your idea with the centre punch Charlie but its just too deep and narrow.
I'm guessing you'd have one of these hub assemblies lying around Jim...
Cheers
Jason

Jim is correct I had a 88" S1 it had fully floating rear axle, genuine S1 axles as well, cheers Dennis

Most Series 1 had a semifloating rear axle, but fully floating was standard I believe on 107wagons and 109s in the last year of production, and optional on all others.

Because the S1 axle housing is shorter than the Series 2/2a/3 axle housing, the fully floating axles have half shafts about an inch shorter than the later ones. Because they were only used on a tiny proportion of vehicles, they are almost unobtainable.

A common solution is to use the later half shaft, and fit a spacer made by turning the centre out of an axle flange, and this appears to be what you have. And as you have found, that really means you need longer bolts, which being BSF, are not that easy to find.

If you have drive flange bolts coming loose (not just on this modified setup) make sure that the bearings do not have excess play, as this will very rapidly loosen the bolts.

Originally Posted by Jcrowe69

Thanks for your replies guys, I'm planning to keep the set-up but have mangled the hub, I have three clear good holes, two which the drill wandered to the side drilling the stud so the easyout won't move whats left and the last hole the drill bit has busted in the remnants of the stud, I like your idea with the centre punch Charlie but its just too deep and narrow.
I'm guessing you'd have one of these hub assemblies lying around Jim...
Cheers
Jason

yes i will put them on the tralior for cooma jim

The subject vehicle is an 86 so would have the semi floating rear axles originally.

I have two complete 57 88s and a 57 rear axle from another 88 and all are semi floats so all 57s didn't have fully floating but as John mentioned, in the last year of manufacture the long wheel bases transitioned to fully floating.