put an appropriate size wrench on that square end and take off the studs [caps over the actual studs really], which are the 'lug nuts' for the inners

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot