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jbplock
07-10-2017, 17:00
I took a chance and bought a set of Schefenacker TTT Mirrors on ebay that came off a 2003 3500HD to use on my 2003 2500HD LT with stock heated power adjustable Mirrors. Any chance anyone has a set of installation instructions for these mirrors they could share and/or words of wisdom on installing them? They are in transit and I'll be attempting an install this coming weekend.

We recently bought a 5th wheel RV and have been using some Dometic clamp on towing mirrors that are OK but I remember reading all the good reports on the TTT mirrors and have been watching for set on eBay.

All suggestions and advice are welcome.

Thanks,
Bill
:)

Kennedy
07-11-2017, 13:09
Be sure that the mirrors have the multiplex harness included. This is needed for the 2003 models to connect the drivers side mirror to the control pad. Drop me an email and I'll see if I have the instruction pdf.

jbplock
07-11-2017, 13:55
Thanks John .. I will email you when I get home..

Update:

John, thanks for the Installation Instruction pdf document you sent! The pictures in the eBay listing doesn't show the Multiplex adapter harness as being included but your install document has the pin outs and signal definitions for the Mirror connector. I also found the mirror control schematics in my GM shop manual so I'll be able to determine how to match up the control signals and splice into the OEM harness.

Thanks for your help! :)

Bill