Jump to content

Multi Pro Tailgate Replacement!

Cris805

By Cris805
in Modifications, Wheels & Tires

 Share

Recommended Posts

Cris805 New Member

Cris805

Posted
Posted

Hello,

I have a 2020 sierra Elevation with standard tailgate. I was wondering if I can replace it with a multi pro tailgate, if it'll just be a plug and play with my stock harness or what can i do to make it work. I have a local seller here selling it for $500 came from his denali. Thank you in advance 

Gangly Senior Enthusiast

Gangly

Posted
Posted

Even if it doesn't work on your truck, purchase it and you can turn around and sell it for double easily.

eppieguy Senior Enthusiast

eppieguy

Posted
Posted (edited)

I do believe someone talked about this once and the tailgate is a different width? IIRC

Edited by eppieguy
  • 10 months later...
Delmster Enthusiast

Delmster

Posted
Posted

I really need a center section of the multipro tailgate. Preferably in satin steel metalic. Tailgate mysteriously went down while hauling a car trailer and when turning, tailgate got into the  tongue jack. Still works just makes my 2021 at4 look "not new"

GETGONE Enthusiast

GETGONE

Posted
Posted

You can't just add it. My dealer looked into it when they were trying to find a Trail Boss Custom with the MultiFlex tailgate. The box wiring harness is totally different for the tailgate and in order to add it would run about $3K.

Rob Mugs Enthusiast

Rob Mugs

Posted
Posted
On 9/22/2021 at 4:40 PM, GETGONE said:

You can't just add it. My dealer looked into it when they were trying to find a Trail Boss Custom with the MultiFlex tailgate. The box wiring harness is totally different for the tailgate and in order to add it would run about $3K.

That's likely with the cost of the tailgate at OEM prices.  I'd personally take Gangly's advice if it's the same color.

  • 4 weeks later...
Zas New Member

Zas

Posted
Posted

So I picked up a 2021 AT4 Multipro Tailgate in my trucks color for $600, bought the camera/buttons assembly and the non surroundview harness. He kept the camera/buttons assembly and harness to keep the surroundview working. I assembled and installed and the midgate does not function. Hearing that this might BCM programming issue. Anyone have any advice on a programmer that can turn the feature on?

  • 6 months later...
Sharpie Enthusiast

Sharpie

Posted
Posted

I just did a multi-pro swap for my 22 Silverado and it was relatively easy.  Luckily all of the wiring and relays were there for the minor gate.  For starters I cut the ground wire to the mid gate switch.  I needed to get 12V to this.  (I know I am talking ground and 12V, but stay with me here...)  At the Chassis side of the tailgate harness there is 12V Battery at Pin 1.  this was ran for trucks with the power up option.  My truck had the fuse and ckt already.  So I cut the lead out of the connector and ran a new wire up through the tailgate following the factor harness and connected it to the ground side of the pin on the minor gate switch.  The other end of the switch is the yellow lead that goes back to the BCM to signal the button was pressed.  Again I happen to have the minor gate relays and wiring on my standard gate LTZ, so I don't know what other trims it was also there. I needed to use this new 12V ckt I made to go direct to the two relays top drop the minor gate.  At the BCM I cut the Yellow switch wire (Pin X6-15) and connected it to relay outputs White/Gray (Pin X6-7) and Gray/Blue (Pin X7-7).  From the BCM this relay output was power to ground.  So by starting my switch at the 12V+ I just created a new ckt though the switch to the relays and down to GND.  I did pull the 30A endgate fuse while I was doing all this.  It all works!  The only downside is when the vehicle is locked, this ckt is still powered and will open upon press. I have the factory up fitter switches too, so I think I will use one of them as a disable possibly.  Should be really easy as the BCM is right below the upfitter switches.  The multipro I got was the same color truck but a GMC.  I still need to swap the emblems.  Waiting on a good sunny warm day to make that chore a little easier. 

  • Like 3
Gangly Senior Enthusiast

Gangly

Posted
Posted
1 hour ago, Sharpie said:

I just did a multi-pro swap for my 22 Silverado and it was relatively easy.  Luckily all of the wiring and relays were there for the minor gate.  For starters I cut the ground wire to the mid gate switch.  I needed to get 12V to this.  (I know I am talking ground and 12V, but stay with me here...)  At the Chassis side of the tailgate harness there is 12V Battery at Pin 1.  this was ran for trucks with the power up option.  My truck had the fuse and ckt already.  So I cut the lead out of the connector and ran a new wire up through the tailgate following the factor harness and connected it to the ground side of the pin on the minor gate switch.  The other end of the switch is the yellow lead that goes back to the BCM to signal the button was pressed.  Again I happen to have the minor gate relays and wiring on my standard gate LTZ, so I don't know what other trims it was also there. I needed to use this new 12V ckt I made to go direct to the two relays top drop the minor gate.  At the BCM I cut the Yellow switch wire (Pin X6-15) and connected it to relay outputs White/Gray (Pin X6-7) and Gray/Blue (Pin X7-7).  From the BCM this relay output was power to ground.  So by starting my switch at the 12V+ I just created a new ckt though the switch to the relays and down to GND.  I did pull the 30A endgate fuse while I was doing all this.  It all works!  The only downside is when the vehicle is locked, this ckt is still powered and will open upon press. I have the factory up fitter switches too, so I think I will use one of them as a disable possibly.  Should be really easy as the BCM is right below the upfitter switches.  The multipro I got was the same color truck but a GMC.  I still need to swap the emblems.  Waiting on a good sunny warm day to make that chore a little easier. 

I KNEW IT.  I had a GM guy telling me at the Auto show that the GMC tailgates wouldn't physically fit on the Silverado, and that neither the GMC or Silverado adjustable tailgate would fit on a truck that didn't come from the factory with it.  I called BS and he couldn't tell me why.  Thanks for doing us all a service Sharpie.

redwngr Senior Enthusiast

redwngr

Posted
Posted

The place there is a fit issue is 2500/3500 vs 1500.

The heights are different.

 

 

Sharpie Enthusiast

Sharpie

Posted
Posted
5 hours ago, redwngr said:

The place there is a fit issue is 2500/3500 vs 1500.

The heights are different.

 

 

Yea I meant to mention that too.   All Chevy/GMCs for 2500/3500 are the same and all 1500's are the same, but NOT interchangeable.   Thanks Redwngr.  I'll also mention the only Bowtie that seemed to be for a HD Chevy w/ muli-flex was the black bowtie.  I ended up buying a 1500 gold bowtie and I'll stick that on. 

GETGONE Enthusiast

GETGONE

Posted
Posted

So is yours you did the swap on a 1500 or a 2500/3500?

Sharpie Enthusiast

Sharpie

Posted
Posted

My Silverado is a 22 3500 Dually LTZ Trim. I guess I need to add that to my profile. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,902
    Total Members
    8,960
    Most Online
    whenindoubtuseahammer
    Newest Member
    whenindoubtuseahammer
    Joined

  • Who's Online   2 Members, 0 Anonymous, 418 Guests (See full list)

  • Latest Articles

  • Posts

    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      Its no wonder you've gravitated to the oil types and brands you have in later years after trying certain brands and one being a specialty oil or at least very hard to come by up here and the other would have been a commonly found oil of the era and the vastly different outcomes as a result to using the vehicles in question the same distance for an OCI . It shows what marketing hype can do without actually having the product to back up the claims and that is no different now with the insane claims that are written on the side of a bottle of oil from some of the off the shelf oils.    What has surprised me and I was already finding this out before I bought my truck with the GDI engine, that this newer fancy technology that seemingly would suggest better fuel economy/emissions with this high pressure spray of fuel is not in reality kind at all to the engine or at least the oils life. Yet they insist on claiming long OCI with this technology just like they did with the port or similar type fuel injection systems when in reality its a step back in oil life to have a GDI system.    I think the mistake your making Grumpy is that your not sending your samples to Blackstone and getting the feel good glowing report that you can run it another 1000 or more miles and then send another sample where they say run it yet another 1000 miles and on and on it goes until your sending in something that looks a lot like road tar and then they may suggest you change your oil within the next 1000 miles 😆
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I am guessing that engines of that design back then had a better ability to be abused and survive longer than a new design engine with the long timing chain and the overhead cams and phasers etc. But I would never guess that an engine could go that far and not fail spectacularly or at least die a slow death. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      In the 80's 90's I'd run Honda's 7,500 miles between changes using Red Line HP 5W20 and do it for hundreds of thousands of miles with issues. Back in the day it was an SAE 20 with the HTHS of a SAE 30 and SN add load. It was also very polar. Oxidation VOA was over 120. Besides those motors were SPFI and lean burn tech. I could have likely run it longer but never did.    We had a Toyota bought new I ran on Pennzoil's latest and greatest synthetic of the day with "Penthane". A made up word for a very low dose of PAO. Tried 7,500 mile OCI's in that Group III/VI chemistry and the rings tapped out at 90K. Rocker box wasn't as bad as the one Punch put up but it wasn't good either. Also a SPFI motor.    I'm around 3,750 across the board on these GDI monsters and the oil it tapped out by then usually on TBN/TAN crossover and color. Red Line HP Euro.    The AMSOIL SS brochures tell you to follow the OEM values for the service class but that it can be run up to 25K if monitored. I can't imagine what motor could go that distance and not tap out. I've never owned one.    Yes, I know. Lot's of people do. I'm just not going to be one of them. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I knew a guy in the early 80's that bought a new Monte Carlo and ran it a 100,000 miles without ever changing the filter or the oil. Just kept adding. It looked like that inside.     
    • whenindoubtuseahammer
      My First Project and GMC has me stumped

      By whenindoubtuseahammer · Posted

      Good evening. I was lucky enough to get passed down to me a 2007 GMC LBZ that was my great uncle's. While the underside and rockers are more or less gone I feel like with time I can restore it to working order since it only has 110,000 miles and he put nearly every option he could get without getting the new body style since he did not trust DEF. So far I have done everything I can think of but when I put the key into the ignition nothing happens. I put 2 brand new batteries in it. Cleaned the terminals. Check all the fuses and relays and they all pass with my multimeter. I know I'm missing something that I just cant think of. The only odd thing is the OBD2 port works which makes me think its not the mega fuse. Any advice would be greatly appreciated. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...