609albert Posted July 18, 2011 Share Posted July 18, 2011 will LED stop, tail,signals work on a L model mack with a positive ground system ? Quote Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/ Share on other sites More sharing options...
Greg Rider Posted July 18, 2011 Share Posted July 18, 2011 They should be OK as long as you follow the polarity on the lights. Quote #1 on A-model registryIf I drink because of work, why can't I drink at work? Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82009 Share on other sites More sharing options...
other dog Posted July 19, 2011 Share Posted July 19, 2011 They should be OK as long as you follow the polarity on the lights.yeah, I put LED taillights on the mixer, just had to hook 'em up backwards, they work fine. Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82043 Share on other sites More sharing options...
Greg Rider Posted July 19, 2011 Share Posted July 19, 2011 I have Truck Lite LED stop-turn-tail lights but I am running with a negative ground system. Just follow the polarity like O'dog said and you'll be fine. Quote #1 on A-model registryIf I drink because of work, why can't I drink at work? Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82078 Share on other sites More sharing options...
peterj Posted July 19, 2011 Share Posted July 19, 2011 Single lights will work if they have 2 wires. If the have 1 wire and are grounded with the mount (screw) its a maybe. Some have a dioade bridge inside and will work either way...cheep ones no...Most duel lights ( combo tail and turn/brake) will not... You can get 1/2 to work but not both... Its realy a crap shoot.. buy 1 and test.............. Quote peterjhttp://forums.aths.org/Instantforum2010/topic72786.aspx57 mack h67 Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82083 Share on other sites More sharing options...
jaysm35a2 Posted July 19, 2011 Share Posted July 19, 2011 I 2nd Peterj , the multi brake and turn signal ones do not work on a posi. I had to go back to regular tail lights after trying that one. Quote Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82088 Share on other sites More sharing options...
other dog Posted July 21, 2011 Share Posted July 21, 2011 Single lights will work if they have 2 wires. If the have 1 wire and are grounded with the mount (screw) its a maybe. Some have a dioade bridge inside and will work either way...cheep ones no...Most duel lights ( combo tail and turn/brake) will not... You can get 1/2 to work but not both... Its realy a crap shoot.. buy 1 and test..............The three marker lights I put on worked fine, just hooked them up backwards for positive ground. You are correct on the brake lights/turn signals though. I could get one or the other to work, but not both. I ended up getting 2 more lights just for brake lights and wired them to a spring loaded toggle switch that I mounted on the gear shift. Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/19806-led-lights-on-a-l-model/#findComment-82147 Share on other sites More sharing options...
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