Nope, the 'Keystone'. They are bit bulkier, but have the same hole spacing. They will also accept arms from 9.5 to 12 mm. Someone mentioned RIMS. The new aluminum bands have adjustable mounting points. I have 2 sets with the "extra" lugs on them. Both have RIMS on them. They can be found, or you can have a machine shop make them. I had 2 made, then I sent them off to get chromed and you can't tell the difference.You have lots of options, all depends on how much you want to spend and what you want to accomplish..BTW, just looked at the Gibralter mount. The memory locks are flimsy and the mounts will strip out when used with smaller L-rods (9.5). I've repaired a couple for customers. IF you do go with the Gib's get the newer memory lock, it looks like a DW mem lock and is far sturdier. AS D-fish mentioned, you should upgrade your L-arms to the larger size when going with the Gibralter mounts. Also, these mounts will require drilling at least one new hole as the hole spacing is different from Ludwig....
Keystone brackets! I forgot about those. Excellent, those would be perfect: genuine Ludwig parts, no drilling, no expensive suspension mounts (the drums resonate enough as it is!). Do you know of any vendors that offer them online? I tried some Google searches and keep coming back with results for Keystone series kits and older mounts.
Thanks!
