My rear end squats pretty hard with my car hauler behind me. Load is 5500ish, and I'm putting around 500lbs on the hitch. car handles fine, but I'd like to avoid the squat + the crazy tire wear that I'm sure will follow it. Have about 3k miles of towing planned for the near future, so I'd like to get the ride height settled.

Bfeng- That looks interesting. Reviews are mostly with various generation toyota siennas, but theres a highlander too. Looking at their site, I'm going to follow their directions for measuring my rear springs- min interior diameter in middle of spring, and height. If i find a set that roughly matches my measurements, I'm going to go for it. What's $100 for a try. I'll get a cheap DC compressor if the install goes well, so I can change it on the fly. I'll keep this thread updated with information I find!

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'10 X5 35d- 279k mi, deleted and DUDMD stage 2, daily and tow vehicle
'01 330i- Drift car: SLR Super angle, BC coils- keep it simple
'07 335i 6mt - Sold @ 171k miles- stage 2 daily commuter for 2 years