1989 Toyota 4Runner Fluid Filters

Hi Bill; I'm not surprised the #T53MR gives you a rough ride since it is the severe service kit. Timbren SES isn't overly forgiving to begin with, and this particular design is for constant loads like a slide-in camper. I would recommend the…

I have attached a drawing from the installation instructions for the rail kit part #C16430-204 you can check out. As you can see in the attached drawing I noted the carriage bolts and where they are located on the rails when installing. Please note…

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

Hey Michael, The Big Truck Big RV Tongue Weight Scale #BTBRV44FR unfortunately can not attach to the bottom of the trailer jack like the etrailer tongue weight scale #e99044 does. The footplate for this scale is held in with a screw so that it…

Hey Scott! Yes, the ThermaHeat RV Holding Tank or Step Heater Pad w/ Thermostat item #277-000164 will turn on at temps lower than 45 degrees. It has been tested and will work with temperatures as low as -32 degrees. I have linked an installation…

Hey there Kyle; the bag that came with your Big Truck Big RV Tongue Weight Scale #BTBRV44FR is available separately. The Big Truck Big RV Accessories Bag #BTBRV002 is what you're looking for.

Hi Don; a scale like the BTBRV Tongue Weight Scale #BTBRV44FR can help you with this. When loading a trailer you want the tongue weight of your setup to be between 10% and 15% of your total trailer weight. This will give you the best ride quality and…

Hey Lynn, we generally don't recommend running more than one set of suspension enhancement on a vehicle because the performance of the two kits together has never been tested and most likely if you need two you are overloading things. I would…

Yes, the Draw-Tite Front Mount Trailer Hitch Receiver part #65074 is listed as a fit for a 2019 Toyota 4Runner TRD Off Road Premium and it should not interfere with the kinetic dynamic suspension system (KDSS). The Draw-Tite Front Mount Trailer Hitch…

The Timbren Suspension Enhancement item #T28MR and the RoadActive Suspension item #RAS54FR can both be used in tandem on your 2021 Silverado 1500 but I wouldn't recommend it. The Timbrens are great to reduce sag but they only engage when your…

You are able to use either the 2,000LB #RAS4611 or 3,000LB #RAS54FR RoadActive Suspension Custom Leaf Spring Enhancement Kit for your 2022 Chevrolet Silverado 1500 ZR2. The only reason you would not be able to use either kit is if your ZR2 has the…

The #AL57388 is designed to fit the AT4 and Trail boss models of the 2022 GMC Sierra 1500. Since you have the Elevation with Adaptive Ride Control technology you will need a different suspension enhancement system that is compatible. I recommend the…