So just put in my seats, nice. However, CCOT claims their Bestop seats will work just fine with my stock '78 Toyota seatbelts. They supply two L brackets to anchor to the back lateral rear riser bolt of the front and passenger seat. Problem is that bolt screwed right in to the stock seat lower frame and now it will have to go thru the L bracket and I can't seem to figure out the thread pitch, but seems like an 11mm bolt which is odd. Anyone know what the thread pitch and size should be? Actually a 7/16 X 20 thread pitch will work but is sloppy and I know this needs to anchor tight. Also need to figure out how to mount the seat belt receptacle as the new seats have no bolt hole on the medial side of the seat like the stockers have too. So much for "bolting right up". Also, does anyone know if the Brake light and Fasten Seat belt light on the '78 work on the same bulbs behind the speedo cluster? And how to access that combined light fixture? Thanks!