Is the router table New? I would return the table to sears, and get the table or table top kit from Oak Park. Sears uses standard Porter Cable size guides, Ibelieve thay are 1 3/16ths dia. Oak Park uses larger guides. If you can't return the tabe to Sears, then I suggest that you buy some Porter Cable size guides. But I would not buy
steel guides, as they loosen and can damage the bit.
Good luck. Woodnut65