jdunk54nl

The 5100's for 0-2" of lift have an overall length of 28.9", the ones for 4" lifts have an overall length of 32.56"
So you could maybe use the 0-2" lift ones, but they are going to be close to their extended length. I know my rear shocks have an overall length of 31" and they are sitting right at 26.5" with a 3.25" of rear lift compared to factory (3" rear block instead of the 1.25" factory and 1.5" add a leaf). Most 4" lifts use a 4" rear block so you would be sitting right around 26" of extended length on your rear shocks. If you use the 0-2" 5100's this only gives you about 3" of down travel, so the shock will be your limiting factory and that would scare me.

vinnydstx

I know it wasn't one of your choices, but I have the RC for over 3 years now and it's been great.

RLXXI

@techrep 35x12.50x18
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yokev

I put a Zone 5.5" lift on my '16 Colorado, and not only did it actually align better than fricken stock, but the ride quality improved(although the bigger sidewalls had something to do with that), and it cornered better(yes, believe it or not)
Rancho just used my '18 F150 diesel to test fit some of their stuff on it, and gave me their 4.5" lift for my troubles. I'm riding on stock wheels/tires til my new ones come in, so I can isolate the lift ride this time around. It has their shocks on it, but it rides better than stock. Feels at least as plush on the road, but I can haul *** over speed bumps with almost zero deflection.
Lemme see if I can dig up a photo here...
Those wheels/tires are Rancho's, and they're 285/65/20.(34.6"x11.5" more accurately)
I've ordered 295/70/18s(cuz I actually use my **** offroad, therefore I need sidewall), which equate to 34.3"x12"
Rancho has always had a reputation like Banks. May not be the flashiest, but they over-engineer their ****, and it's always been rock-solid.
This time around is the first time I've ever dealt directly with the factory engineers themselves They're UBER helpful, and something I always like to see when I'm buying(I got it for free this time around as I said earlier) a product like this, They truly BELIEVE in their product
I had a Superlift on a Chv 35004wd years ago, and that sumbitch ALWAYS popped swingarm link ends
IMO, you can't go wrong with Rancho, BDS, or Zone(both owned by Fox). Rough Country, ahhhh...I'd kinda stay away from. Know people that've bought their stuff, but don't know anybody that's put over 20kmi on one of their lifts.
I compared their lift side by side to the Zone I put on my Colorado, and the RC parts literally looked cheap, thin, and underbuilt in comparison.
Had a problem with a CV boot tearing on my Colorado that Chevy wanted to blame on the lift, and when I called Zone, they were prepared to provide ALL their documentation that showed their lift didn't put any more stress on the CV boots than stock(the CV/axle angles were no worse than stock). It didn't get that far, but I got the impression they would've stepped up and covered it if need be as well
BTW, you can run Fox(or anyone else's for that matter) in conjunction with pretty much any lift. It doesn't have to be the BDS.
You can also get the Fox Extendo-CO's that BDS(and I believe Zone now too) offer, that have longer bodies, thus take the place of the strut spacers that most 6" lifts use.

__Skinny__

Maxtrac 4.5 spindle lift with a UCA from Camburg is a great upgrade. And well within your budget. You may even have some left over for upgraded suspension too! But you can also run stock struts if you choose!

Blown F-150

I'm looking at the 4" BDS. They seem to make a quality kit that a lot of off-roaders stand behind. The weld-in brace also get's a thumbs up from me!

I already have Fox 2.5's up front (2.0's in the rear). So, I'll likely just go with the spacers and the correct length 2.0's for the rear.