2022 Tahoe Z71 AMP RESEARCH Powersteps Installed

[nick14226]

Took some time to get my hands on this kit but install is complete of AMP P/N 76327-01A Powersteps. I think they look really good, don't tuck up as high as the previous version on my '17 Yukon but do cover the rear frame where it drops down on the '21-up, so I'm happy.

Had a challenge with the passenger side motor clearing the rear AC lines and came up with a workaround. Won't get into details on that as I'm sure AMP will correct the issue after I showed them, but if anyone else runs into it let me know. Otherwise install went smooth.

Here are some pics.

 

[GMCnewbee]

They look really nice!

 

[WVBKW]

Wheel and tire size? Are those the 18” wheels from trail boss or the replica trail boss 20”?

 

[nick14226]

Wheel and tire size? Are those the 18” wheels from trail boss or the replica trail boss 20”?

Good eye, yes, 20x9 trail boss style replica wheels with stock size 275 60 20 BFG KO2's.

 

[WVBKW]

At4 take offs and BFG’s for winter, my wife’s. Trying to decide to add same setup with your wheels to my suburban z71.

I have ran BFG’s for 25 years, I feel like the set shown in photo is loud. I have never felt that way. How are yours?

 

[nick14226]

View attachment 376594
At4 take offs and BFG’s for winter, my wife’s. Trying to decide to add same setup with your wheels to my suburban z71.

I have ran BFG’s for 25 years, I feel like the set shown in photo is loud. I have never felt that way. How are yours?

AT4 looks great!

Only have around 1000 miles on these KO2’s, but so far they’re quiet. Had about 15000 miles on the 285 55 20 KO2’s on my Yukon and they were quiet too (rotated every 5k miles). I’m surprised they’re loud for you, hmm. Maybe rotate and try different air pressure, mine are load range D LT’s, running 45 psi cold.

 

[Schmeckp]

Took some time to get my hands on this kit but install is complete of AMP P/N 76327-01A Powersteps. I think they look really good, don't tuck up as high as the previous version on my '17 Yukon but do cover the rear frame where it drops down on the '21-up, so I'm happy.

Had a challenge with the passenger side motor clearing the rear AC lines and came up with a workaround. Won't get into details on that as I'm sure AMP will correct the issue after I showed them, but if anyone else runs into it let me know. Otherwise install went smooth.

Here are some pics.

Curious what the fix was for the rear AC lines - just installed the kit myself and hitting the lines as well. Called AMP and they said you can slide the lines over - I haven't been able to move them enough that they don't contact the motor. Was that the solution you did as well?

 

[nick14226]

Curious what the fix was for the rear AC lines - just installed the kit myself and hitting the lines as well. Called AMP and they said you can slide the lines over - I haven't been able to move them enough that they don't contact the motor. Was that the solution you did as well?

That's what they suggested and I really really didn't want to mess with those. Moving rigid/formed AC lines isn't the right way, and I know what it costs to replace those as they failed on my '17 Yukon. Is yours a '22? They told me they've installed many on '21's without the issue so seems something changed (or they only installed on Suburban's which could be different). Took a lot of back and forth for them to believe what I was saying, then finally said a shop had this issue and "simply" relocated the lines. I told them I wasn't doing that and guided them down the path of re-orienting the motor. Now they're back to telling me nobody else has had the problem when I followed up on what their permanent fix is. I continue to support the company being a US designer/manufacturer but they're not making it easy LOL.

Here's my message to Amp, laid it out for them to try to help with a better fix. Still waiting for them to thank me, wishful thinking I guess. If you're willing to get into this level of rework I can give you some more details on the motor and linkage disassembly.

"After losing several hours on this install on my ’22 Tahoe I came up with two passenger side motor configurations that will work without unclipping and moving the rear AC lines (which I’d strongly suggest not be the approach).

Pic 1 worked but motor is hanging down in harm’s way. I get into deep snow at times and believe the motor could eventually become damaged.

Pic 2 was close but end of motor did clear the frame by about a 1/16”. Tahoe wiring harness that runs along the frame had to be unclipped to run around the outside of the motor but seemed to have enough slack to comfortably go around it. I chose this configuration as the motor is protected.

I did have to grind the small nub in Pic 3 off the back of the gear housing. Assume that adds strength to the connection between the gear housing and linkage arm due to the stress on the bolts the motor torque will apply when cycling repeatedly over the years.

Considering I removed the nub and made swiss cheese of the gear housing having to drill additional holes I would like a replacement passenger front linkage arm please once AMP determines the best configuration for this."

 

[Schmeckp]

That's what they suggested and I really really didn't want to mess with those. Moving rigid/formed AC lines isn't the right way, and I know what it costs to replace those as they failed on my '17 Yukon. Is yours a '22? They told me they've installed many on '21's without the issue so seems something changed (or they only installed on Suburban's which could be different). Took a lot of back and forth for them to believe what I was saying, then finally said a shop had this issue and "simply" relocated the lines. I told them I wasn't doing that and guided them down the path of re-orienting the motor. Now they're back to telling me nobody else has had the problem when I followed up on what their permanent fix is. I continue to support the company being a US designer/manufacturer but they're not making it easy LOL.

Here's my message to Amp, laid it out for them to try to help with a better fix. Still waiting for them to thank me, wishful thinking I guess. If you're willing to get into this level of rework I can give you some more details on the motor and linkage disassembly.

"After losing several hours on this install on my ’22 Tahoe I came up with two passenger side motor configurations that will work without unclipping and moving the rear AC lines (which I’d strongly suggest not be the approach).

Pic 1 worked but motor is hanging down in harm’s way. I get into deep snow at times and believe the motor could eventually become damaged.

Pic 2 was close but end of motor did clear the frame by about a 1/16”. Tahoe wiring harness that runs along the frame had to be unclipped to run around the outside of the motor but seemed to have enough slack to comfortably go around it. I chose this configuration as the motor is protected.

I did have to grind the small nub in Pic 3 off the back of the gear housing. Assume that adds strength to the connection between the gear housing and linkage arm due to the stress on the bolts the motor torque will apply when cycling repeatedly over the years.

Considering I removed the nub and made swiss cheese of the gear housing having to drill additional holes I would like a replacement passenger front linkage arm please once AMP determines the best configuration for this."

Thanks for the detailed write up. Yes, this is a 2022 High Country. I need about 3/8" for the line to effectively clear - but to get to the clamp, I have to disassemble the entire passenger side step and remove the front mount. Going to give it a try when I get an hour.

When I called, they said they heard of it on one other tahoe, but the customer just adjusted the AC line. No acknowledgement of it being on any more vehicles, or that there were other solutions proposed.

On the OEM steps, the motor comes in 90 degrees to what these AMP steps do. I thought AMP was the OEM manufacturer, so was hopeful that the fit would be solid - not to mention the bracket only catches 2 bolts instead of 4 in each location.

It also took me a minute to figure out the wires. The instructions reference the Light Gray BCM plug, but I had to trace the wires back to realize they should have said Dark Gray.

 

[nick14226]

Thanks for the detailed write up. Yes, this is a 2022 High Country. I need about 3/8" for the line to effectively clear - but to get to the clamp, I have to disassemble the entire passenger side step and remove the front mount. Going to give it a try when I get an hour.

When I called, they said they heard of it on one other tahoe, but the customer just adjusted the AC line. No acknowledgement of it being on any more vehicles, or that there were other solutions proposed.

On the OEM steps, the motor comes in 90 degrees to what these AMP steps do. I thought AMP was the OEM manufacturer, so was hopeful that the fit would be solid - not to mention the bracket only catches 2 bolts instead of 4 in each location.

It also took me a minute to figure out the wires. The instructions reference the Light Gray BCM plug, but I had to trace the wires back to realize they should have said Dark Gray.

View attachment 383120

I noticed there was a revision to the instructions online vs the paper copy I had, most had to do with wiring. The online instructions seemed to jive with what I saw on my Tahoe.

I do think Amp does some oem stuff, but yeah, the factory GM steps look quite different.

Good luck with the lines and if you need more info for my approach don’t hesitate to ask. Pulling the gear out of the linkage to get at the motor attaching plate to re-index wasn’t very intuitive.