Air Suspension Air to Coil Springs and Struts Conversion Kit with Gas Shock Absorbers Bundle - Lexus & Toyota

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Limited Lifetime Warranty
  • Installation Instructions Included
  • Brand NEW
  • Regain The New Car Feel
  • No Sacrifice Of Ride height Or Quality
  • Improve Consistency Of Carry Load
  • Reduce Your Vehicle Down Time

Order Includes:
Order Includes: 2 Front Quick Complete Struts, 2 Rear Coil Springs, 2 Rear Shocks, Bypass Resistors

Electronic Gas Passive Shock Conversion Kit Includes Resistors,INCL. CONVERSION SPRINGS, ISOLATORS & INSTALLATION INSTRUCTIONS,Pre-Assembled Coil Spring Strut Assembly converting from Electronic Strut Assembly; Electronic Gas Passive Shock Conversion Kit Includes Resistors,MODELS WITH XREAS SUSP. INCL. CONVERSION SPRINGS, ISOLATORS & INSTALLATION INSTRUCTIONS,Pre-Assembled Coil Spring Strut Assembly converting from Electronic Strut Assembly
Out Of Stock
Part Number 63T-31-ASSY
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
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Suncore’s Front and Rear Air Spring to Coil Spring Conversion Kit Part 63T-31-ASSY for your 4Runner, GX460 or GX470 is the perfect upgrade for an aged and failing air suspension system. Our air to coil spring conversion kits are brand new and built to give your 4Runner, GX460 or GX470 a more reliable suspension system.
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Lexus: 4853060071
Lexus: 4853069205
Lexus: 4853069185
CARDONE New: 4J-6000SK
Lexus: 4853069485
Arnott Industries: SK-2813
CARDONE New: 4J-6001K
Arnott Industries: C-2410
Lexus: 4851069195
CARDONE New: 4J-6001SK
Lexus: 4851069415
Lexus: 4851060121
Arnott Industries: SK-2812
WARNING CA Proposition 65
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

4.3 out of 5 stars
8 total ratings
Verified Buyer
excellent quality, excellent price, excellent technical specialist service, secure damage proof packaging, guarantee in place. don't be fooled by higher price. sun ore product first choice.
Reviewed on 2/1/2021
Verified Buyer
Parts arrived on time and were as described. Installation was easy- customer satisfied with product.
Reviewed on 12/29/2020
Verified Buyer
Decent product for a good price!
Reviewed on 12/28/2020
Verified Buyer
Great fit fast product for the shop needing that extra profit in pocket its not a high end brand name but a great alternative i have not used the warranty from this company so that said use there products you will be just fine.
Reviewed on 10/1/2020
Verified Buyer
This is a good suspension refresh kit and if you also want to replace the air suspension with a traditional coil rear suspension. The job was not overly difficult to perform at home by myself, but definitely needed a full alignment before I could drive safely after (I replaced a tie rod end link too). The overall feel of the suspension is much better than with worn out OEM shocks and struts, along with failing airbags. It rides smooth on surface streets and highways. I only wish it wasn't so floaty or soft. There needs to be more firmness for better stability and driving dynamics. This may have been engineered for a lighter weight 4-Runner, but this is a Lexus GX470. I would rather have spent twice the price (or more) for OE components or Bilstein shocks and firmer springs.
Reviewed on 9/28/2020
Verified Buyer
Work great easy to install
Reviewed on 9/21/2020
Verified Buyer
Good instructions, good quality. The only problem is that I don’t believe the front struts are at a high enough capacity. The car rides very good most times, however bottoms out a lot on the front. This causes it to “bounce” on larger bumps.
Reviewed on 10/11/2019
Verified Buyer
It was okay. It was lack features and did not synch up with original Lexus items Thanks Andy
Reviewed on 9/10/2019
Showing comments 1-8 of 8

Air Suspension Air to Coil Springs and Struts Conversion Kit with Gas Shock Absorbers Bundle - Lexus & Toyota

I need to replaced my Air Suspension on my Lexus GX470

Customer Service

We are happy to help you with your GX470! The kit you are looking at is a conversion, it will get you out of electronic suspension and into a passive conventional suspension. We include resistors and full instructions in the box. Please let us know if you need anything else. -Stephanie

I have a 04 lexus gx470, do you have a kit for just the rear or is it only for front and rear?

Customer Service

Hi Jake, we do have kits for just the rear. Please see the part number below for just the rear conversion: Let me know if you need anything else. -Stephanie

This kit is compatible with an 2002 Lexus LX470??

Customer Service

Ivis, This is not compatible with an LX470. Unfortunately we do not have conversion parts for this model. We apologize! -Stephanie

Will this kit work on a GX470 sport that has KDSS? I've seen other lift kits for KDSS equipped GX470s but one rear spring is slightly longer than the other for the KDSS application.

Customer Service

Yes. That kit will fit the GX470. If you mechanic can cut and weld an opening into the vehicle it should help with an over spacing issues that may come to be. -Denzel