Hella 500FF Install "Q"
JK Enthusiast
Joined: Dec 2008
Posts: 268
Likes: 0
From: Northwest, Indiana
I didn't use the switch that came with my Hella 500's. But most switches with a round back to them fit thru a 1/2" hole.
*By round back I mean that where the wires attach to the backside of the switch, the switch is threaded with a plastic nut.
*By round back I mean that where the wires attach to the backside of the switch, the switch is threaded with a plastic nut.
Thread Starter
JK Enthusiast
Joined: Aug 2010
Posts: 107
Likes: 0
From: Frazier Park, CA
I sized the back of the switch to a 1/2 drill bit and the switch was bigger. its not a treaded back switch, it looks like a press fit switch. it looks like this.
Last edited by Stonewhite JK; Dec 27, 2010 at 11:43 AM.
JK Super Freak
Joined: Sep 2010
Posts: 1,651
Likes: 0
From: Montgomery, Il
This may sound stupid, but I test drilled a milk gallon plastic lid to make sure the hole was just the right size. I can't remember the bit I went with but it was an easy way to test fit prior to drilling into my Jeep!