I tried that kit, didn't like it, returned it. Frugal Dougals gave me much hassle about it too. It was a mess, and the company that made the kit was rather uncooperative as well. Lets just say, I was far from a satisfied customer with either one of them...
I found the kit to be poorly made. It was far too cumbersome how they made the rear lowering kit. Too many brackets. They significantly reduced frame to axle clearance, instead of just using U bolts. The big plates they want to use are overkill, heavy, and just a bizarre design.
The front spindles do not drop as much as they say. Gave the cart a saggy *** look. This was even after new springs, etc. Plus they push the front tires out too far. Makes the cart look a bit odd, instead of maintaining the original suspension geometry, and wheelbase. Why poke the front wheels out wider, there is no need for that. The carts bodylines are designed to be narrower in the front.
I ended up getting a cheap rear lift kit and flipping it over to lower the rear end 2 inches: (this is a very similar kit, its all basically the same idea. blocks, u bolts, thats it. stick the block above the spring and below the axle)
https://tinyurl.com/2p8pk9cw
I fabbed up brackets for the front shock towers, and made the front drop a bit over 2 inches for a nice even flat look. I maintain all original suspension travel, and no sag, droop, etc. Can even have 3 people on the back seat, and no rubbing. Used double leafs in the back, all new shocks/struts. rides smooth, but no tilt, like a sports car in the corners. like a sporty cart should ride.
If you have even a little bit of mechanical ability, a sawzall, and a drill, you can do what I did. I have a lot more tools, sure, but it really doesnt take much. I ordered the metal stock I used on ebay to make the front shock mounts