These are longer than the Firestone 4135 for lifted vehicles
Complete kit – 1 per vehicle
Inserts inside your rear coil springs to add additional load support
Manually inflate or deflate the air bags to add or remove support or height
Perfect for people who tow, or regularly load up fully and need additional height or support
Route the airlines to your rear bumper or a suitable place to easily add or remove air to the bags
Fitment Notes:Â NOTE: Custom modifications may be required for lifted applications to ensure air bags are properly supported. If using on a lifted application, do not follow Firestone bump stop/jounce cut instructions. You will need to determine where to cut based on your lift amount (not cutting off as much depending on lift height)
Firestone 4108 air spring helper kit, for many Toyota and Lexus SUV’s, designed for those who have varying rear loads where coils alone can’t suit all the ways the vehicle is used. These are for 2-3″ of lift, not for lower lift heights
Kit Number: W237604108
Designed to work in temperatures between -40ËšF (-40ËšC) and 180ËšF (82ËšC)
Easily control air pressure in the air springs for varying loads and conditions
Spring performance can be altered as easily as inflating a tire
Made of durable, elastic polyurethane
Complete kit – 1 per vehicle
Inserts inside your rear coil springs to add additional load support
Manually inflate or deflate the air bags to add or remove support or height
Perfect for people who tow, or regularly load up fully and need additional height or support
Variable rate coils’ initial rate could pinch the air bags at full extension then compression
Route the airlines to your rear bumper or a suitable place to easily add or remove air to the bags
Fitment Notes:NOTE: Custom modifications may be required for lifted applications to ensure air bags are properly supported. If using on a lifted application, do not follow Firestone bump stop/jounce cut instructions. You will need to determine where to cut based on your lift amount.
Firestone 4108 Suits all 3rd/4th/5th Gen 4Runners, FJ Cruiser, GX470, GX460 WITH 2-3″ lift coils. For a lower lift height, use Firestone 4135 instead.
FILL KIT: MANUAL
LOAD CAPACITY: 1000LBS
INSTALLATION: NO DRILL
IN-BED HITCH: NOT COMPATIBLE
MIN. AIR PRESSURE: 5 PSI
MAX AIR PRESSURE: 35 PSI
INSTALL TIME: 1 HOUR
LEXUS YEARS
GX470 2003-2009
GX460 2010-2023
TOYOTA YEARS
4 Runner 2WD, 4WD 1998-2024
FJ Cruiser 2WD, 4WD 2007-2014
1996 Toyota 4Runner Airbag Kit
1997 Toyota 4Runner Airbag Kit
1998 Toyota 4Runner Airbag Kit
1999 Toyota 4Runner Airbag Kit
2000 Toyota 4Runner Airbag Kit
2001 Toyota 4Runner Airbag Kit
2002 Toyota 4Runner Airbag Kit
2003 Toyota 4Runner Airbag Kit
2004 Toyota 4Runner Airbag Kit
2005 Toyota 4Runner Airbag Kit
2006 Toyota 4Runner Airbag Kit
2007 Toyota 4Runner Airbag Kit
2008 Toyota 4Runner Airbag Kit
2009 Toyota 4Runner Airbag Kit
2010 Toyota 4Runner Airbag Kit
2011 Toyota 4Runner Airbag Kit
2012 Toyota 4Runner Airbag Kit
2013 Toyota 4Runner Airbag Kit
2014 Toyota 4Runner Airbag Kit
2015 Toyota 4Runner Airbag Kit
2016 Toyota 4Runner Airbag Kit
2017 Toyota 4Runner Airbag Kit
2018 Toyota 4Runner Airbag Kit
2019 Toyota 4Runner Airbag Kit
2020 Toyota 4Runner Airbag Kit
2021 Toyota 4Runner Airbag Kit
2022 Toyota 4Runner Airbag Kit
2023 Toyota 4Runner Airbag Kit
2024 Toyota 4Runner Airbag Kit
2006 Toyota FJ Cruiser Airbag Kit
2007 Toyota FJ Cruiser Airbag Kit
2008 Toyota FJ Cruiser Airbag Kit
2009 Toyota FJ Cruiser Airbag Kit
2010 Toyota FJ Cruiser Airbag Kit
2011 Toyota FJ Cruiser Airbag Kit
2012 Toyota FJ Cruiser Airbag Kit
2013 Toyota FJ Cruiser Airbag Kit
2014 Toyota FJ Cruiser Airbag Kit
2015 Toyota FJ Cruiser Airbag Kit
2016 Toyota FJ Cruiser Airbag Kit
1996 Toyota Land Cruiser Prado 90 95
1997 Toyota Land Cruiser Prado 90 95
1998 Toyota Land Cruiser Prado 90 95
1999 Toyota Land Cruiser Prado 90 95
2000 Toyota Land Cruiser Prado 90 95
2001 Toyota Land Cruiser Prado 90 95
2002 Toyota Land Cruiser Prado 90 95
Suits all 3rd/4th/5th Gen 4Runners, FJ Cruiser, GX470, GX460 WITH 2-3″ of Lift
Also Suits Toyota Land Cruiser Prado 90 and 95 Models RZJ90, VZJ90, KZJ90, KDJ90, RZJ95, VZJ95, KZJ95, KDJ95
These are an alternate to Firestone 4108
Complete kit – 1 per vehicle
Inserts inside your rear coil springs to add additional load support
Manually inflate or deflate the air bags to add or remove support or height
Perfect for people who tow, or regularly load up fully and need additional height or support
Route the airlines to your rear bumper or a suitable place to easily add or remove air to the bags
Ships from multiple warehouses across the country for faster shipping times
Fitment Notes: NOTE: Custom modifications may be required for lifted applications to ensure air bags are properly supported. If using on a lifted application, do not follow bump stop/jounce cut instructions. You will need to determine where to cut based on your lift amount (not cutting off as much depending on lift height)
Individual Air Accessory Components Are Also Available, Including Compressors, Air Tanks, And Mounting Solutions, Providing A Wide Variety Of Air Control Assist Solutions
Adjust The Ride For Various Load And Road Conditions With A Switch, Remote Or Mobile App
Provides An Instant Air Source For The Air Helper Springs Or Accessories
Single Point Fill (Both Air Springs Fill To The Same Pressure)
Light Duty Compressor Specs (120 Pounds Per Square Inch Max Air Pressure, 9 Percent Duty Cycle, 0.32 CFM)
Limited 2 Year Warranty
Dash Panel Style:Â Controls Two Air Springs Simultaneously
Type:Â Heavy Duty
Maximum Pressure (PSI):Â 130 Pounds Per Square Inch
Note: Product was updated to bigger/thicker stud of the ball joint in 2020, no longer needing the small sleeve shown in the product video. Some vehicles’ sway bar is too thick to use the thick supplied washer, so reuse the stock washer if necessary
Suitable for lifts over 2.0″. There’s really no benefit to adding them if there’s less lift than 2.0″
Includes all necessary hardware, including machined spacers and nuts/bolts
Includes 2 different lengths of the long bolts as some vehicles need them longer than others
Compliments Dobinsons 3″ lifts for IFS Toyota and Lexus vehicles
Simply remove the front skid plate, remove the 2 long bolts at the front of the diff, install the spacers and long bolts supplied, install the skid plate spacers and longer bolts supplied while reinstalling the skid plate
Note: Some aftermarket skid plates have spacers built-in so the small spacers aren’t necessary, and some skid plates may use larger bolts to install it to the vehicle, requiring modification to the supplied spacers
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