Autoride Z55 Suspension Conversion Complete Struts & Shocks with Bypass - GMC, Cadillac & Chevy

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Installation Instructions Included
  • Brand NEW

Order Includes:
Order Includes: 2 Front Quick Complete Struts, 2 Rear Shocks Assembled with Helper Springs, Bypass Resistors

Part Number 151G-30-4-ASSY
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
Suncore’s Front and Rear Active to Passive Suspension Conversion Kit Part 151G-30-4-ASSY for your Avalanche, Escalade, Escalade ESV or Suburban 1500 is the perfect upgrade for an aged and failing air suspension system.
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Cardone New: 4J-0010K
Arnott Industries: C-2666
Westar: CK-7626
General Motors: 19209555
General Motors: 15886465
General Motors: 15911938
General Motors: 15918522
General Motors: 25888675
General Motors: 15909491
General Motors: 19353945
General Motors: 15939374
General Motors: 25845438
General Motors: 19300031
General Motors: 25888683
General Motors: 20810270
General Motors: 25845447
General Motors: 25845446
General Motors: 25888684
Arnott Industries: SK-2954
WARNING CA Proposition 65
WARNING CA Proposition 65


Suncore Industries was established in 2000 and have been a member of the Automotive Parts Rebuilders Association (APRA) ever since. Our mission began with rebuilding air suspension components and moved quickly into offering better solutions with conventional suspension conversion kits to give our customers the longevity they can rely on.

The most common reason for an air strut failure is due to dry rotting of the air bag. This is something that happens over time, the air bag starts to deteriorate and causes leaks, when this happens the air bag can no longer hold air pressure. A leaking air bag can cause the strut it fits over to fail as well. The second factor of an air strut failure is the strut itself. The strut is pressurized with fluid, and if the strut begins to fail it will no longer have the same pressure to hold the vehicle. If this system begins to fail one visible sign will be that your vehicle will be lower than factory height. If Air Struts are not replaced on time, it will cause an Air Suspension Compressor Failure.

We are happy to offer free UPS ground shipping on all orders to the lower 48 States.

Unfortunately since these parts are quite heavy and large we cannot offer free shipping to Puerto Rico, Hawaii nor Alaska. (We do offer shipping to these areas, but it will be based upon UPS quotations. Please feel free to contact us directly.)

We do not ship to P.O. Boxes nor APO's as UPS will not deliver to these locations.

If you would prefer a different or expedited shipping option, please contact us and we will be glad to work around your needs.

Business hours are Monday to Friday 9am to 5pm EST.

We ship UPS Ground by default
Same-day shipping will be provided for orders placed before 2PM EST
Orders after 2PM EST will be shipped the next business day
Orders on the weekend will be shipped the next business day
Orders on a holiday will be shipped the next business day
Tracking will be provided immediately to the email provided in your order
Signature required is mandatory on any order over $400
Signature required may be requested on orders below $400

Complete strut assembly free shipping ups ground
Please refer to this chart for estimated transit times. We are shipping out of the warehouse in Boynton Beach, Florida zip code 33426

4.6 out of 5 stars
7 total ratings
Verified Buyer
Installation was fairly easy and straight forward. The bypass wiring was the only issue for a bit. After getting the kinks worked out it has been a great system
Reviewed on 10/19/2020
Verified Buyer
I install these kits at my shop. I also have one on my personal escalade and the company does great work! Easy to install and great ride quality.
Reviewed on 9/23/2020
Verified Buyer
great product. I replaced on my 2011 GMC yukon XL denali. I did not install the front resistors so I keep getting "service suspension" but not a big deal at all.
Reviewed on 9/21/2020
Verified Buyer
Great ride
Reviewed on 6/3/2020
Verified Buyer
worked great
Reviewed on 5/14/2020
Verified Buyer
Excellent,complete the job with no problems
Reviewed on 9/12/2019
Verified Buyer
Hope it will work
Reviewed on 8/27/2018
Showing comments 1-7 of 7

Autoride Z55 Suspension Conversion Complete Struts & Shocks with Bypass - GMC, Cadillac & Chevy

does this get rid of the service suspension system warnings in the dash?

Customer Service

Hello, This kit is not designed to eliminate the warning light for the full air system this kit will only bypass the active dampeners at each wheel if the suspension light is on due to any other components in the system this will not eliminate that light

The kit says it doesn't work with the escalade ext but it works with Chevy avalanche which is identical. The escalade and escalade esv are only differentiated by wheelbase length. Please clarify whether or not this system does or does not fit the 07 escalade ext. Thanks

Customer Service

Thank you for reaching out, we are glad to help. We do not have this kit listed as compatible due to the rear shocks. The weight of an EXT or ESV is too heavy for this shock absorber. We apologize for the inconvenience, we hope you have a good day. -Stephanie

How difficult is it to install the resisters

Customer Service

Hello, we are glad to help. The resistors are fairly easy to install. The dampening plug to your OE strut gets cut and you connect 1 wire to each side of the resistor. They do get hot to the touch so we recommend fastening them to metal. If you have further questions please let us know. -Stephanie

Will this conversion kit work on a 2015 suburban Ltz magnetic ride

Customer Service

Hello, we are happy to help. Unfortunately our parts are not compatible with a 2015 model, we only carry fitment up to 2014. The spring rate and ECU is different on a 2015. We apologize for the inconvenience.

Is this kit compatible with a 2007 gmc yukon xl denali?

Customer Service

Hi Chris, Yes! This kit is compatible with your vehicle! Please let us know if you have any further questions. -Stephanie

Are the bypass resistors needed for both the front and rear I have the Z55 suspension

Customer Service

Jason, we are glad to help! Yes, we include resistors for each corner of conversion. We also include thorough instructions in the box. Please let us know if you need anything else, we hope you have a good day. -Stephanie

I have a 2010 Avalanche LTZ 5.3L that i would like to convert the suspension system to passive. I do haul a 30 ft. travel trailer. Would your system work for my application?

Customer Service

Robert, This kit will work for your vehicle, however I do not recommend gas shocks for towing. Our parts are not designed for towing, so I cannot say it will keep your factory ride height. Please let us know if you have any additional questions. -Stephanie

do you sell the proper pieces to eliminate the light on in the dash

Customer Service

Hi Toby, unfortunately we do not sell resistors separately. This kit comes with the necessary resistors to alleviate the dash light for your shocks/struts. Please let us know if you need anything else!

It says its compatible with my 2015 cadillac but through these comments your saying it's not so is it or no ?

Customer Service

Jeremy, yes this kit is compatible with a 2015 Escalade. Please let us know if you have any additional questions.

Will this kit fit a 2003-2004 Cadillac Escalade

Customer Service

James, I would recommend the following conversion kit for your year model: This is passive gas for front and rear suspension and includes bypass resistors. Let us know if you need further assistance! Have a good day. -Stephanie

Is this kit compatible with 2011 Yukon XL Denali?

Customer Service

Hi Jeremy, Yes this is compatible with your vehicle! Keep in mind these parts are non-electronic with a bypass. Let us know if you need anything else, have a good day!

Will this suspension replace a Z95 in a 2009 base Escalade?

Customer Service

Rex, Unfortunately our parts are not compatible with a Z95 sport suspension. It is a lower profile and our parts will raise the front of your vehicle about 1.5 inches with standard non-sport parts. Please let us know if you have further questions. -Stephanie

I’m wanting to lift my 2010 Avalanche LTZ but all the kit for autoride suspensions are expensive. Very expensive. Can I use this system to change my suspension so I can use a regular lift kit ?

Customer Service

Hi Steven, Our parts should be compatible with your lift kit. As long as the top mounts on your spacers are not modified, then this will work. If you are having any issues please let us know. -Stephanie

Is this compatible with 05 Escalade Esv ? Info provided is confusing.

Customer Service

Christopher, This kit is not compatible, however part # 150G-12-4 would be what you are looking for. Please let us know if you need anything else. -Stephanie

Would these shocks work on an 07 Escalade base model. I pull a 21' boat with it and would like to convert over to these, if possible?

Customer Service

Hi Steve, These parts are compatible! Because these parts are air suspension you can still tow and stay at factory ride height. Please let us know if you have further questions about this kit. Keep in mind they are conversion so these shocks can be filled with a compressor or manually at the gas station. We hope these parts do exactly what you need! Have a good day! -Stephanie

This appears that it will work for my 2010 Cadillac Escalade ESV, however, mine has the 22" wheel package and also the rear air leveling. Will this work with by passing the rear air leveling?

Customer Service

JJ, Yes this is a bypass for your electronic air suspension to get into a passive gas shock. Resistors are included so you will not get a dash light for your suspension. Please let us know if you have more questions regarding this!

I have a 2012 Chevy Suburban LTZ lifted 7" (inches) but I want to do more. (1) Will this kit allow me to bypass the factory air ride so tht I could use aftermarket a coil over suspension?

Customer Service

01/22/2019 GC, This kit will bypass the factory ride and get you into a passive system. It will be compatible as long as your lift uses spacers and there's no mod on the top mounts of your parts. If your top mounts have been altered our conversion will not be compatible. If you need anything else please let us know. -Stephanie Customer Service

2007 Chevy avalanche 1500. Need to convert away from the air ride suspension to a heavier duty spring suspension front and back. Any suggestions on kits that are good for moderate welding trailer towing (single axle mig/Tig/compressor welding under 1/2 ton trailer.)

Customer Service

Alex, This kit will be a conversion for your vehicle however I wouldn't recommend it for towing. Our gas shocks are not designed to hold the weight of the vehicle to tow. I recommend 151G-14-4-ASSY, this kit has a passive air shock that can be manually filled at a gas station. Air shocks will always be your best bet for towing. Please let us know if you have any further questions.

I would like to check the compatibility for a 2008 GMC Yukon Denali XL 4x4

Customer Service

Jeff, This is compatible with your model, you are safe to purchase! -Stephanie

I have a 2010 4x4 Tahoe with leveling it compatible ? Looking for a smoother ride

Customer Service

Miguel, This kit is compatible, if you are experiencing issues with your suspension now then this will definitely be a smoother ride. These are a conversion so you are getting out of electronics and into a passive system, resistors are included. If you have additional questions we are glad to help. -Stephanie

I have a 2007 suburban ltz that is level and has the autoride system, will this lift it more?

Customer Service

Hi Chase, The conversion kit will not lift it more, it's going to keep your vehicle at factory height. Our parts are designed to OE specs and will bolt, fit, and maintain factory height. Let us know if you have further questions, we are happy to help. -Stephanie

hi I have a 2007 Chevy Suburban I was wondering if these shocks and struts would fit my truck it's not electric suspension it's regular

Customer Service

Mendy, Yes these shocks are compatible! They are a conversion so it will get you out of electronic suspension. Resistors are included in the box as well. Please let us know if you need anything else. -Stephanie

I purchased this 151G-30-4-ASSY conversion kit and I am seeing on some of the reviews that this kit does not fit a flex fuel vehicle, if so what would be the process to return the kit.

Customer Service

Byron, This is compatible with a flex fuel. We will be sure to cypher through our old review and correct this! The only exclusion is a Z95 sports package. Please let us know if you need further assistance. Have a great weekend. -Stephanie

I have. 08 suburban Ltz flex fuel rwd I’m trying to get s conversion kit for both front and rear? Which is best?

Customer Service

Hi Jay, The kit you are viewing will be the best option if you are looking to get out of both electronics and air suspension. Its a passive conventional system with complete struts for the front and gas shocks with helper springs for the rear. If you need further help with this, please let us know. -Stephanie

I have a 2010 LTZ 4X4 Tahoe, have the suspension service advisor on. Air ride not kicking on anymore. So want to convert. I tow a boat with these rear shocks work?? If not do you have a kit with a upgraded RearShocks or can we buy separately?

I would like to lower my 2015 Tahoe with auto ride in the rear you have anything available to lower 4 inches

Customer Service

Unfortunately, all our parts are built to the OEM Specs, to keep the vehicles at its original height, we do not carry any lowering kits at this time. Regards, Marcelo

Will this work on a 2008 Chevy Tahoe LTZ that has the Z55 air ride suspension in the rear and electric struts in the front? Will the resistors remove the "Service Suspension System" dashboard warning light if the compressor is bad?

Customer Service

The resistors are meant to bypass any errors regarding the conversion, but id a defective component (like the Air Compressor or a height level sensor) is triggering the error light these will not clear that for you. Regards, Marcelo