There seems to be a lot of lacking answers here.
Rusty's sells stuff advertised at one thickness, but if you cut it up, its something else. I've seen a lot of .250" and .188" tube items from rusty's be .090 and .120 when they broke.
Rusty's does poor quality welding with minimal penetration. I have *personally* seen 4 rusty's trackbars now come apart.. sometimes at the upper bung, sometimes the lower bushing.
Rusty's is known to ship with grade 5 hardware where grade 8 hardware should be required. Just being cheap.
Rusty's has a long history of shipping incomplete kits, when you call to straiten it out, rusty himself will come on the phone and belittle you, and tell you how you are wrong.
Rusty's has many times taken a phone order for X dollars with Y shipping. When the charge hits your card, shipping was Y+50%. "the nature of an estimate" they will tell you. I can tell you it doesnt cost $80 to ship a pair of coils USPS.
In general, Rusty's Offroad sells inexpensive yet still overpriced parts of very poor quality that will wear out quickly or break entirely. In our chapter, I can name two people who have had rigs totaled by Rusty's trackbars failing on the highway while fairlyl new. In both occasions Rusty's said it was "clearly an installation problem".
If you want to buy and use Rusty's go ahead and do it. From your first post here, its clear that you have already been warned of poor quality parts. I wish you the best, but please don't come wheel with us. I don't want Rusty's headache to be my headache yet one more time.