We use a 2018 Lincoln MKX to haul a 5X10 trailer that might be 1,000# total with load max. It would sit about an inch low on the tongue and dropped the back of the vehicle about the same. The suspension on the MKX is an A arm style with adaptive shocks and coil springs, no bump stop. I went with the medium weight rubbershox to not affect the ride without the trailer and fix the sag with the trailer. They worked out perfect- no affect to normal driving and it towed much better. The spring coil is .71 in diameter so was a little concerned about fitting since the spec on the spacer was .54. I trimmed out the inside edge to help with installation and used the lube they specify- it wasn't too much of a fight to feed the spacers in and they seated nicely- with the wire ties and the weight back on the spring there was no deforming of the spacer, super happy with the results.
