Jump to content

AT4 Tech Package Tow Mirrors

kenac

By kenac
in Modifications, Wheels & Tires

 Share

Recommended Posts

kenac Enthusiast

kenac

Posted
Posted

So I'm a big dummy and bought a set of tech package (cameras, lane change, etc) tow mirrors on eBay for my '20 AT4 half ton.

 

Except they came off of a '20 High Country - a Chevrolet, and I didn't do my research before purchasing them.

 

I didn't notice until I went to install them and after the drivers side was on I realized there was a not insignificant gap on the bottom side where the bodyline and the plastic of the mirror don't line up. The good news is the camera and lights worked so I know the mirrors are good.

 

So I'm deciding what to do - try and find another pair from a GMC to purchase or try and rig these up to work somehow. It appears that the door design of the Chevy may be thicker because it has a longer/deeper bracket that goes through the door - hence why it didn't pair up correctly on the outside. Maybe that mount portion can be swapped out, I need to investigate.

 

Just posting on the off chance anyone has made the same bonehead mistake I did or knows anything about the difference between GMC and Chevy mirrors. It may be more hassle than it's worth and I'll put them back on eBay.

Chris Callanan Enthusiast

Chris Callanan

Posted
Posted

I can't help there, but does that mean you are getting rid of tech package regular mirrors (with Cameras, blind spot, etc)?

 

Been trying to figure out how to add cameras to the mirrors... Only way I've found so far is Intellihaul..

Transient Senior Enthusiast

Transient

Posted
Posted

Tech package towing mirrors for a Chevy that you can't use.  I know somebody that may be interested in them.  They have non-tech tow mirrors and want to upgrade. 

gemarsh Senior Enthusiast

gemarsh

Posted
Posted

Have you checked to see if there are different part numbers?

 

I'm not quite understanding your problem.

 

I am thinking maybe there might be a support plate that goes inside the door for the heavier mirrors? Strange chevy doors would be thicker, that you would notice a problem mounting a mirror. 

 

Just spitballin here.

kenac Enthusiast

kenac

Posted
  • Author
Posted
On 9/14/2021 at 7:02 PM, Chris Callanan said:

I can't help there, but does that mean you are getting rid of tech package regular mirrors (with Cameras, blind spot, etc)?

 

Been trying to figure out how to add cameras to the mirrors... Only way I've found so far is Intellihaul..

 

Eventually, once I find some to replace mine. But I didn't install these with the gap on the bottom.

kenac Enthusiast

kenac

Posted
  • Author
Posted
13 hours ago, Transient said:

Tech package towing mirrors for a Chevy that you can't use.  I know somebody that may be interested in them.  They have non-tech tow mirrors and want to upgrade. 

 

I can't vouch for if/how that's possible but yea these are most likely getting resold.

kenac Enthusiast

kenac

Posted
  • Author
Posted
13 hours ago, gemarsh said:

Have you checked to see if there are different part numbers?

 

I'm not quite understanding your problem.

 

I am thinking maybe there might be a support plate that goes inside the door for the heavier mirrors? Strange chevy doors would be thicker, that you would notice a problem mounting a mirror. 

 

Just spitballin here.

 

The part numbers don't make any sense to me. It's an assembly so all the different pieces have different part numbers. Every identifiable part number I can find on the mirrors is either for a small part (dust boot, for example) or returns nothing online.

 

Visibly there is no difference from what I can tell but I don't have a set of GMC tow mirrors to lay side by side with these and measure. All I know is the bracket from my regular mirror doesn't stick out as far as the bracket on the Chevy tow mirrors does. Otherwise the dimensions are the same - it fits and all 4 bolts tighten down it just has a gap on the outside.

 

I may try it again and take pictures this weekend. Was hoping to find someone who had made the swap or made the same mistake as me that might be able to shed a little light.

GETGONE Enthusiast

GETGONE

Posted
Posted

GMC and Chevy doors are different. The body lines are different where the mirrors mount. There's another thread on here of someone replacing regular mirrors and thought the GMC and Chevy's were the same and they didn't fit and had a gap like you are describing when they put a Chevy mirror on their GMC.

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   1 Member, 0 Anonymous, 296 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...