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  #21  
Old August 23rd, 2016, 03:44 PM
RBBailey
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RBBailey
1965 IIa
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Thanks for replies on this. I'm going to get back to this problem once I get the truck running. First things first.
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1988 Saudi 110 (soon to be 300tdi)
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  #22  
Old September 6th, 2016, 10:35 AM
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John B.
1991 Defender 90, 200TDI
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Quote:
Originally Posted by JSBriggs View Post
If you want metal, you can retrofit a difflock switch onto the tower.

-Jeff
I looked at this today as I was changing a dead diff lock switch. The diff lock switch closes when pressed. For a brake light switch, you want it open when pressed. Or am I missing something?

I don't think they are the same thread either. The diff lock switch is 3/8" UNC (which is really weird on a Land Rover). The brake light switch looks to be a fine thread, 1/2" UNF according to the internet.

Brake light switch
http://www.vehiclepartsdatabase.com/...s/lucas/smb419

Diff lock switch
http://www.vehiclepartsdatabase.com/...s/lucas/smb485
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  #23  
Old September 6th, 2016, 11:54 AM
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Robert Davis
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What vehicle is this and what tower does it have?

Regarding the plastic switch for the defender style vehicles:
If the switch gets screwed in too far, it can gall the plastic and prevent the center button from coming out rendering the switch inoperative.
Also a lot of the threads in the plastic switches are of poor quality.
I always chase the threads with a dye before installing.
The length of threads you screw in is how the switch is adjusted and there should be a nut to lock the switch in place.
It's plastic, so take care not to over tighten.
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  #24  
Old September 11th, 2016, 01:56 PM
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Jesse
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Robert, I had this same exact problem. I used my stock tower with a Disco booster and master. With the stock brake light switch barely threaded it was already activating. I ordered this switch from EBay for $6 and it worked great. The button at the end of the switch doesn't activate as quick as the Land Rover switch does so you can thread it in a couple turns.

Standard Motor Products SLS66 Brake Light Switch
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  #25  
Old September 11th, 2016, 05:48 PM
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Robert Davis
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Thanks for sharing.
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Uncle "Richard" Douglas has a Land Rover with big wheels that never gets stuck... until he breaks something so it won't go. Uncle Douglas always breaks something. - Anna Crowther at the Conclave 2012 (AKA Carburetor Neck)

"What's with this death wobble, Uncle Douglas, I can't keep it in 1 lane?"
UD: "Just Power through it man!"
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