The nuts fit on the threads of the u bolts kind of strange. One of the nuts wouldn't tighten more than half way, had to go to hardware store and get a replacement which fit better than the included nuts.

2020 trail boss. Used this with the 1.75 front leveling kit, put the truck right at 1/2 inch higher in the rear. Exactly what I wanted.

Nice blocks! Made and fit just like OEM.The only pain in the A was the u-bolts are way way too long.Which means you cant tighten them with a deep well socket.Have a sawzall or cutoff wheel handy.

Great looking. Easy install

Well built. 3 in the rear and 1.5 up front

Fit my 2016 Sierra perfectly.

I put these on my truck a few years ago to go with the 2.25"" leveling kit from Readylift. It kept a slight rake for towing, which is exactly what I wanted. Had some fun with the super long threads on the U-joints, but it was a simple install overall.

Husband is happy now that his 4wd Chevy is lifted and ""tough"" looking!