[HOW-TO] "4-HI" brake light mod (EASY method!) (STOCK TAILS)

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Tricky's_Limitedhoe

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Check both circuit boards good as well as bulbs. Then check harness into board and under rear bumper for power, could have corrosion in connector.


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1sickcrewcab

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Got it working. Thanks!!! Ended up being a combination of things. 1. Two wires on brake light switch harness were cut in half, don't know how that happen if I didn't even mess with that. 2. Brake light switch and 3. Even though fuse was good it had little corrosion on it which was enough to not make contact.
 

95C1500

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Just did this to mine. Driver side works fine. Passenger side, the bulb shattered in my hand (ouch) so I went an bought new ones then came back and it didn't work. so I rewired it several times then I finally plugged the passenger side circuit board into the driver side harness and it still didn't work. Looks like a new circuit board is next. :nono:
 

nailhead

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I just finished up the 4 hi brake light mod. I also replaced the bulbs with 3457. They are 40/3 candle power vs the 32/3 candle power of the 3157 bulbs.
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BackInBlack

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I just finished up the 4 hi brake light mod. I also replaced the bulbs with 3457. They are 40/3 candle power vs the 32/3 candle power of the 3157 bulbs.
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Are the bigger bulbs running hotter in the housing? That would be my fear of putting the 3457.
 

1997k1500Calvin

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I just finished up the 4 hi brake light mod. I also replaced the bulbs with 3457. They are 40/3 candle power vs the 32/3 candle power of the 3157 bulbs.
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Looks great, what brake light bar is that

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nailhead

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Yeah I have that fear to of them running hotter. But they seem to be working good and the housings don't feel any hotter than the stock 3157.


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nailhead

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Thanks. I can't remember what brand the light bar was. I bought it about 6 years ago. I do remember it had really good reviews on it and it also has the white reverse lights built into it. Also a lot brighter compared to my old one I had got threw stylin concepts. I'll try to go threw all my old receipts and try to find the brand for ya.


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95C1500

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mine is a Rampage. $45 and a 3 year warranty... I'm happy with it
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