LoadLifter 5000 Series Rear Air Spring Kit for my 2006 GMC Sierra 2500 Crew Cab Diesel 4x4 on March 2 2011.Good instructions Perfect fit no drilling except the small hole for the air valve

The instructions were accurate, but a bit vague in a few details

The instructions say to support the axel with jack stands which is incorrect

Arrived quickly, easy install with easy and clear instructions

The instructions are great

Very easy to install, no holes to drill (except for the air line nozzles), good instructions

The instructions were accurate, but a bit vague in a few details

The product performs above my expectations and the instructions are great.

It is very good quality, good components, and well written installation instructions (in English as a First Language, too).

Quality product, clear concise installation instructions

To overcome this problem, I had to cut a rectangle that was 1 1/8" by 1 1/4" from the rear inboard corner of the lower bracket to fit the lower bracket down onto the strike plate (the platform) in order to have it sit flat and perpendicular to the air bag (if it weren't flat on the platform it would damage the air bag).Because of these sketchy instructions and differences between the video and the written instructions, and because GMC did things a bit differently for 2004 (and probably other years as well), I had to assemble and disassemble the air bag units several times.

Clear instructions, easy installation.

Easy instructions.

Just ok poor instructions won't fit a 2008 Silverado 2500

However, there were several mistakes or unclear instructions.

Much easier with proper instruction