Autoride Air to Coil Spring & Gas Shock Conversion Kit for GMT360 Rear Suspension

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

Order Includes:
Order Includes: (2) Rear Coil Springs, (2) Rear Gas Shocks, (2) Insulators

Part Number 148G-30-HD-KIT
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
Suncore’s Rear Air Spring to Coil Spring Conversion Kit Part 148G-30-HD-KIT for your Ascender, Envoy XL or Envoy XUV is the perfect upgrade for an aged and failing air suspension system.
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WARNING CA Proposition 65
Suncore's Rear Air Ride to Coil Spring and Gas Shock Conversion Kit is the complete conversion kit you need to replace your expensive and tired air suspension with traditional and reliable coil springs and gas shocks.


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

5 out of 5 stars
1 total ratings
Verified Buyer
The Air Ride conversion kit I bought for my 2006 Trailblazer SS included heavy duty coil springs and gas shocks. It was an easy change over, it rides so much better now and no more problems with the air system. I would recommend it to anyone considering changing over. Service from Sun Core Ind. was awesome !
Reviewed on 6/12/2019
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