Kev - sorry to hear a problem like that - may be the wrong 'brand', but old rubber will be hard, not soft .... if the ones you've had were from SoffSeal [sp?] I understand, try Steele Rubber part #70-1714-50 $68.20/ea, no reveal molding [63 GM truck] ..... it'll be right - if the previous ones were from Steele and wouldn't work, they should give ya satisfaction

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