brake drum thickness.
 

Hi, after my brake overhaul I found i had to discard the brake drums on the tank hunter as they were worn out, The ones i fitted still had the internal chamfer inside on the outer edge, (I am assuming this is a wear indicator as the ones i discarded did not have any chamfer left).

does anyone know the outer wall thickness on a new drum?.

I found on inspection of the brakes some previous owner had, 'to keep the old girl going', modified the expanders on the brakes. I am now back to original good condition expander mechanisms, but am looking for a set in good condition now for the mortar carrier, if any one has any, I have carrier parts to trade and 'Lynn' a good canadian steering wheel for trade.

I am also looking for a set of brake drums, shame these have had all the machinable material removed as otherwise they are in fine condition, Maybe someone has a set for trade?.

thanks kevin.

is it not possible to have a ring made which can be "sweated" into the drum ?

Kevin
 

What is wrong with simply using oversize linings?

Kevin,
I have a couple of spare drums (PM sent).
TTFN

Typically, brake drums allow for at least one round of machining.
On a 10" drum for example, usually they cap ot at 10.060", sometimes
10.090". On a larger drum like a carrier has, I assume there would be at least
.090" to .125" allowable. Considering that these are neither high speed nor streetable, I think you could be flexible as to what is useable. If they were really bad, I would consider oversized linings as suggested.

Hi, I think i will keep the drums and look into getting oversize shoes made up in the future, I have three sets of NOS brake shoes to use up so am looking to put decent drums back on near original speck, like the idea of putting a ring in but this is not common practice. Shaun, if you have good drums on offer I will take them. I have a 75% complete set of rear springs for you, removed and free.

kevin.