I have a 2021 TRD Pro and have a travel trailer that weighs 3010 pounds with a tongue weight of 300 pounds. I have a bit of rear-end dip and want to level it out when towing. What is is the best, safest, enhancement I can make? I’d prefer options that add minimal weight, the payload capacity of the 4Runner is poor as it is. TIA!
Towing - Leveling the 4Runner
- Thread starter Sicnarf
- Start date
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progress4m
Member
I think adding air bags (air lift) would be your best option. I had them on my 4th gen and it was great for towing 4500 LBS Travel Trailer.
Third vote for Air Bags!
I third this! The recommendation for air-bags.
Similar to you, I planned for 400lb travel-trailer tongue weight when I did my lift, and I added Firestone air-bags at the same time.
Summary of installation:
I run about 5.5 psi for everyday driving and mid-level offroading, and never notice the 'bags. For my utility trailer (1200 lbs) I leave them at this 5.5psi. I will find out how my travel-trailer responds in a week or two, where I plan to run the 'bags at around 20psi.
Since they're independent, I can also compensate for side-to-side weight differences.
Some offroaders like to join the 'bags together, specifically to defeat the anti-sway action that my independent arrangement provides. Should I wish to do this, I would simply make a short 'U'-shaped hose with Shrader-coupler on each end and "short" my fill-valves together. But I don't plan to...
I third this! The recommendation for air-bags.
Similar to you, I planned for 400lb travel-trailer tongue weight when I did my lift, and I added Firestone air-bags at the same time.
Summary of installation:
-undo axle-stuff so it can droop a lot. I was doing this anyway, with my lift. Typically shocks and hoses, but don't rush and check, check, check.
-push down maybe a bit more, let the springs fall out
-insert the airbag
-route the air-hose. I opted to drop mine down through a hole in the upper-spring-seat, then plug it into the airbag. The Shrader valves for filling are separate / independent, located on the rear bumper just inside the tailgate.
-push down maybe a bit more, let the springs fall out
-insert the airbag
-route the air-hose. I opted to drop mine down through a hole in the upper-spring-seat, then plug it into the airbag. The Shrader valves for filling are separate / independent, located on the rear bumper just inside the tailgate.
I run about 5.5 psi for everyday driving and mid-level offroading, and never notice the 'bags. For my utility trailer (1200 lbs) I leave them at this 5.5psi. I will find out how my travel-trailer responds in a week or two, where I plan to run the 'bags at around 20psi.
Since they're independent, I can also compensate for side-to-side weight differences.
Some offroaders like to join the 'bags together, specifically to defeat the anti-sway action that my independent arrangement provides. Should I wish to do this, I would simply make a short 'U'-shaped hose with Shrader-coupler on each end and "short" my fill-valves together. But I don't plan to...
