Conversion to 15" rims and 205/75/15 Bridgestone 689 LT  on  91 auto Westy.

As a test, mounted rears with lock washers sized the width the bolt
protruding from brake drum. Will the narrow lock washers cause the wheel to
distort?

Is a hardened washer a sufficient spacer for this application?  Perhaps a
washer with more surface area would be better for pressure distribution?

Archives showed one member simply removed the bolts from the drums, no need
for spacers then.  I have no experience inside a brake drum.  Could this
procedure harm anything?

I question whether this 'spacer' procedure with washers is safe -- but
then, why would it not be?

Thanks

HK Sawyer