Salisbury diff center removal

**d2dave** · 1st January 2010, 05:27 PM

Originally Posted by mark2

After just having installed the DL, I can verify that it only needs tyre levers to remove and soft hammers to reinstall. Carefull use of the bearing caps and bolts to pull the center into position also worked for me. My bearings were less than 100% ie some visible wear on the hard facing on the cones but I made the decision to reinstall as is - new bearings = major setup issues. I will check them at regular intervals.......

The Detroit is awesome - I dont even know its there on the road.

These days bearings are made to such exact tolerances you can change them without major set up issues. The only time you will have set up issues is when changing crownwheel and pinion.

I have changed many bearings on Falcons with sailsbury type diffs.
The only set up issue is getting pinion bearing preload correct as you should use a new collapsible spacer.

Dave.

**groucho** · 1st January 2010, 05:53 PM

All of the above
a centre with worn side bearings generaly will be easy to get out
you can pop them ouy with a couple of tyre levers
BUT it is ideal to spread the case to install the centre to get the desired pre load on the bearings.........Mark

**TJWA** · 27th May 2010, 12:48 PM

Thanks for all the info everyone. I'm currently putting a Detroit Locker in my Salisbury.

This IS a stupid question, but I just want to confirm (seeing as I'm not a mechanic). The shims in the photo below are meant to go back in with the Detroit Locker assembly, or should they be left out and the Locker just slides against the diff assembly?

Thanks for any help.

**isuzurover** · 27th May 2010, 01:06 PM

Originally Posted by TJWA

Thanks for all the info everyone. I'm currently putting a Detroit Locker in my Salisbury.

This IS a stupid question, but I just want to confirm (seeing as I'm not a mechanic). The shims in the photo below are meant to go back in with the Detroit Locker assembly, or should they be left out and the Locker just slides against the diff assembly?

Thanks for any help.

The shims are very important - they are used to move the crownwheel side-side to adjust backlash.

You will need the shims, however you may need thicker or thinner shims, depending on what the backlash is like when you trial fit the new centre. You will also need to use a dial test indicator when setting the diff up, to check backlash and runout.

EDIT - sorry - looked at your pic closer and it seems you are showing the thrust washers which go between the side gears and the casing. Is that correct? It seems the detroit for the sals is a "lunchbox" type locker - which you fit into the sals casing??? There will need to be a thrust washer of some description between the side gears (or whatever the bit of a detroit is called that replaces the side gears) and the casing

**TJWA** · 27th May 2010, 01:22 PM

Thanks for the fast reply Isuzu. I'm a bit confused though, wouldn't you change the shims behind the carrier bearings to adjust the backlash? This would push the crownwheel from side to side. The shims I'm referring to are the ones on the inside of the assembly that the spider gear drives sit against. I'm thinking that the Locker would need to turn inside the assembly against those shims when one wheel travels faster than the other.

**isuzurover** · 27th May 2010, 01:29 PM

Originally Posted by TJWA

Thanks for the fast reply Isuzu. I'm a bit confused though, wouldn't you change the shims behind the carrier bearings to adjust the backlash? This would push the crownwheel from side to side. The shims I'm referring to are the ones on the inside of the assembly that the spider gear drives sit against. I'm thinking that the Locker would need to turn inside the assembly against those shims when one wheel travels faster than the other.

See my edit. They are not shims, they are thrust washers. Since the detroit for the sals is a "lunchbox" locker you can ignore my first comment.

TJWA's Better Half · 27th May 2010, 01:44 PM

Originally Posted by isuzurover

See my edit. They are not shims, they are thrust washers. Since the detroit for the sals is a "lunchbox" locker you can ignore my first comment.

Oh excellent, thanks a heap for confirming that. I learnt something though, after your first comment I though about it a heap, ended up looking under the bearings and noticed shims there. I put a TrueTrac in my Rover front diff last week, and after pulling the Salisbury apart had not been able to figure out how the backlash was altered until then. I now also know the difference between a shim and a thrust washer!

Edit: Oh gees, I just realised I posted on my so called "better half's" PC.

Thread: Salisbury diff center removal

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