Thanks all. Since I have sag right now (truck has 230k on it) I think I'll end up going with new struts, springs and, depending on how it sits with the RV trailer at that point, I'll look at the airlift option.
Thanks a ton for all the feedback!
So, springs or airbags are the way to go. I'll probably replace the struts at the same time if I go the replacement spring route.
For the Airlift 1000, this is what you are talking about right?: 1996-2002 Toyota 4 Runner 2WD & 4WD - Air Lift 1000 Air Helper Springs [REAR] - 60743 | $78.36...
What do you all recommend? I regularly tow a 3500 lb RV trailer and have notices some sag now in the current struts. What I want is to replace the existing struts with something more heavy-duty and dependable.
Thanks.
1999 4Runner SR5 V6 Manual
Essentially i'm looking for a fix to get better air flow that will still pass OR DEQ for the next 5 years since after that it is exempt. I know at least one of the catalytic converters is impacted (rear based on the sensor reporting).
I live in Southern Orgeon and recently bought a 1999 Toyota 4Runner. Everything seems to be really solid, but it needs the catalytic system replaced. Because it had been a California 4Runner, it has the Dual catalytic set-up which costs over $600 just in parts to replace it.
My curiosity is...