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I’ve read some people use helper air bags inside rear coils to help when towing. These airbags are different than the stock oem rear airsprings. So, if you sag too low in rear when towing and have coils, look into these helper rear air bags. See air bags removed, what about towing heavy loads?@HomersCanyonero @Vlad what if I have the added weight of a roof top tent? What rear springs would I want to go with Bilstein 6112 up front and 5100 shocks in the rear? I don’t want much of a lift, but the RTT weighs 155-175 pounds. Should I get a rear spring that has 2” lift? Will that match for a level stance with the Bilstein 6112 on the first setting? I’ll be towing a 10’ -12’ long trailer to haul metal occasionally also. Hmmm Do I get a HD progressive spring? Toytec any good?
My compressor may have failed last night. I’m going with coils. I bought rear 5100 because I was switching my shocks out before this failure, so now I’m stuck with them. I just bought the MT coil kit, and Bilstein 6112 coil overs in the front. I was going to just get the 4Runner springs from Toyota for $94 each new but then started second guessing myself
In terms of the rest of your suspension, plan for all the extra weight you are going to carry like skid plates, bumpers, winch, tire carrier, etc. Otherwise you will be switching to heavier springs as you add weight.
if you are only doing RTT and nothing else, then you are probably good with the icon rear coils you mentioned, but I’ve never used them and have no first hand experience with them.
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