MVenture
New member
Figured I’d share some feedback on the Dirt King tubular UCAs since there isn’t a ton out there yet for the 2025s.
I installed these while lifting the truck (right around the 2–3” range) because the stock UCAs would have limited alignment and droop. Didn’t want uni-balls this time around since this truck sees a lot of daily miles and road trips. Install was pretty smooth. Nice that they come fully assembled—no pressing bushings or messing with joints. Everything lined up as expected. Just pay attention to the pivot bolt orientation and clearance around hoses if you’re running reservoir shocks. Alignment was the biggest improvement. Caster came back in easily and the truck tracks way better on the highway now. Steering wheel return to center is noticeably improved compared to stock UCAs at this lift height.
On-road manners are basically OEM+. No squeaks, no clunks, no added noise, vibration, or harshness. The SilentSpin bushings seem to be doing their job. I’ve had UCAs in the past that needed constant greasing or they would started making noise—so far these have been completely quiet. Off-road, the extra droop is noticeable. It’s not night-and-day, but the front end feels less topped out and more compliant over uneven stuff. Ball joint setup feels solid without the usual uni-ball noise/maintenance tradeoff. Wheel fitment-wise, just make sure your backspacing is in check. I’m on 17s and had no issues, but I can see how certain offsets could get tight at full lock. Price isn’t cheap, but they feel like a “buy once” part. If you’re lifting a 2025 4Runner up to ~3” and want corrected geometry without turning your suspension into a maintenance item, these are worth a look.
I installed these while lifting the truck (right around the 2–3” range) because the stock UCAs would have limited alignment and droop. Didn’t want uni-balls this time around since this truck sees a lot of daily miles and road trips. Install was pretty smooth. Nice that they come fully assembled—no pressing bushings or messing with joints. Everything lined up as expected. Just pay attention to the pivot bolt orientation and clearance around hoses if you’re running reservoir shocks. Alignment was the biggest improvement. Caster came back in easily and the truck tracks way better on the highway now. Steering wheel return to center is noticeably improved compared to stock UCAs at this lift height.
On-road manners are basically OEM+. No squeaks, no clunks, no added noise, vibration, or harshness. The SilentSpin bushings seem to be doing their job. I’ve had UCAs in the past that needed constant greasing or they would started making noise—so far these have been completely quiet. Off-road, the extra droop is noticeable. It’s not night-and-day, but the front end feels less topped out and more compliant over uneven stuff. Ball joint setup feels solid without the usual uni-ball noise/maintenance tradeoff. Wheel fitment-wise, just make sure your backspacing is in check. I’m on 17s and had no issues, but I can see how certain offsets could get tight at full lock. Price isn’t cheap, but they feel like a “buy once” part. If you’re lifting a 2025 4Runner up to ~3” and want corrected geometry without turning your suspension into a maintenance item, these are worth a look.
