jpal

so.. i'll add to this - and seek some help also... i picked up a used 2017 recently - it had the tri-mode boards - but when i picked it up they were missing.. excuse was one didn't work (suddenly) so they took them off and threw them out (liars).. located a used set from same year same truck - got half a story - but cheap.. i pulled them completely apart - you have to wirebrush the arm spindle bushings top n bottom till clean and shiny - clean out around the oil seals - add wheel bearing grease - reassemble.. wirebrush the motor and slave shaft - note that slave shaft will come out thru the top - after you remover the rubber cap.. shine that right up - grease - replace - apply some grease to rubber cap then replace.. mine had a slight crack where the shaft top had penetrated - black caulk on clean surface - sealed.. clean and remove all dirt etc - rust reformer to the entire bracket - replace wire clips.. the motor - same rubber cap - under the 2 bolts top of motor housing - rear end fluid - be careful not to spill .. can't tell you how to remove the wire clip from the rear toe switch - i'm lost as to how to safely remove it w/o breaking it - a specialty - ha.. i do believe the switch is air activated - but will not come apart with the wire connector attached.. driver side rear arm - top under step had missing collar at oil seal - and oil seal was trashed - can't buy parts - so it's buy the entire arm (130.00) and hope it comes with new seals and poly red bushing sleeves.. will see.. meanwhile i fabricated a double cap n sleeve from plastic to help keep out debris - it rides on the step surface and comes down like an inch - sealed the bottom with caulk for now - greased and reinstalled.. both clean and fresh paint and all arms work effortlessly.. installed onto truck - middle lower bolt on both sides needed a bar to persuade the bracket to bow 1/8" to line up.. replaced the fuse - #74 - 30amp.. opened drivers doors.. f nothing.. opened pass doors - step comes out fast / delay / closes fast.. toe switch doesn't work - but dash button makes the pass board open out - then go to rear - then return to open - then close.. it's ok - since i have a cover and never reach into the bed alongside the truck - keeps it from being scratched.. drivers side - motor will not turn.. i hear the controller click - but nothing.. can't say what the large nut with bigger locknut on front of gear housing does - but unscrewing it 1" and the fluid leaks out.. i tried testing power with a cheap light - i got nothing from motor plug or controller plugs - maybe i am not the elec expert - wish someone was.. bottom line - i know i can buy a replacement arm online at a gm outlet - approx 130.00 .. the foot switch isn't a deal breaker at all - maybe washing the sliding rear window - i'll stand on a bucket.. the motor - is like 375-435 depending.. i hear they sell remanu ones at auto parts places.. like 180-200.. not sure i trust those- i've heard stories.. good n bad.. i'd say the pass motor is fine.. the mechanical condition and parts - fine.. these appear to require 2-4 times a year drop the arms n boards - clean the spindles of old dirty grease - regrease - reinstall.. not too bad - prob a 1 hr job on the ground max. but - an arm - 130 + a motor 400 + maybe another motor ..? when or controller 225..? and will it just be that motor ... or is something frozen inside the gear box.. there is no video / or bulletin or post that shows an exploded view or details or instructions as to how to take apart diagnose or repair .. i wrote this so that maybe it helps someone else ... to do each step - wash / wipe n clean / pull apart and really clean like new the movements n grease / rust converter - like 4 hrs easy each - but they look like new.. a little mothers on the chrome (can't touch up the foot wear..?) they look great.. install from scratch never seeing them on a truck - on the ground - just pick up one end and thread a long bolt half in.. middle bottom bolt - loose.. back bolt ( remember 2 long bolts at back - one top - one thru the thicker alum @ the tail.. took approx 4 hrs - i man - applying grease inbetween everything to prevent the rust - then trying to get them to work. there is some time here.. deciding whether to keep them and spend more - or sell them and buy aftermarket.. the kicker is they look good - are wide and very solid - work with the truck and wiring like simple vs rewiring which from other videos could be 6- 10 hrs of ripping carpet let alone the center console.. and forget buying brand new - at 3300.. a set.. so - if anyone is out there - and you know more and can help - great.. have some parts i need - great - are interested in maybe buying these and want to see a video or pictures on the truck and working and condition - please.. i'll be checking in.. thanks. jp