Monroe Load Adjusting 58637 Suspension Shock Absorber and Coil Spring Assembly Pack of 2 for Chevrolet Silverado 1500

Very easy to install. I jacked up the rear under my hitch with the safety of jack stands. You do not need to remove your wheels for this product install. Nor will you need to remove the spare under the bed of the pickup. If you are installing on a GMT800 model truck (99-06 Sierra, Silverado or SUV models) The bolt and nut size is 21mm. Recommend using wd40 on the bolts before removing. I used a 21mm wrench and 21mm socket on a hand ratchet. Very easy to remove old shocks and install new ones. You will not need to compress the new shock absorber if you jack the rear by the hitch and not the axle. Be sure to chalk the wheels and use the proper jack stands. You want the rear just high enough to where the tire could start to leave the ground if jacked any higher. This is why it is very important to use chalks and jack stands in collaboration. New shocks slip right into place. I recommend placing bolt and securing the top end of the shock before installing the bottom. (It makes it simpler trust me). Do not fully tighten one end of the shock before installing both bolts into both ends this allows better movement. Once both bolts are slipped through you can then ratchet the nuts tight in combination with a wrench. This product does not come with any new bolts or nuts so you need to reuse your old ones or find an appropriate replacement at the hardware store or auto parts store. Tighten securely. Use a torque wrench if it suits your fancy. You will notice it will increase the rear an inch or so more. Very good quality and product is made in USA. Very happy with the ride.

These shocks are working out great so far. These are replacing some cheap Gabriel brand shocks that failed in about a year. This truck has a plow mounted on the front, so I wanted some additional support in the rear when the bed gets loaded up to balance the weight on the front. Install took about 45 minutes, it's just two bolts on each shock. The most difficult part will be breaking loose the bolts if they have never been serviced before. I started with the rear axle in the air, but had to lower the truck down some to line them up, pretty straightforward all said and done. Although every truck will be slightly different with varying leaf springs and suspension setups.Immediately after install I measured the rear about 7/8" higher, and loaded up 500 pounds of sand bags in the very rear of the bed, behind the rear axle. The truck barely dropped, and drives great. Really impressed with these so far, and the shocks themselves feel like much better quality than standard aftermarket OEM replacements. Only thing to note, make sure the springs are seated correctly before installing, and maybe pump the shocks a few times before installing. Mine must've got knocked pretty good during shipping and were laying on the side, so it's a good idea to make sure the oil inside is flowing and the springs are seated properly. They arrived undamaged though.We'll see how they hold up through the winter, handling the cold, salt and constant weight in the bed. These seem like a very good, relatively inexpensive upgrade to make if you haul any weight in the bed or trailers at all. Especially if you are replacing shocks anyway, these are really only a few bucks more than standard replacements. Overall I'm happy and will be considering these for other trucks if they hold up well, and I have no reason to think they won't!

I installed the on a 2004 Chevy Silverado LT CrewCab 4wd, the only issue was lining up lower eyelets to the brackets, alls it takes is to jack the frame of truck up high enough to thread bolt in place, ride is nice and should handle the weight. Fitment was perfect.

Excellent Product and Quality and Value!! I'm very satisfied

Great replacement shock, ride is smooth with or without weight. Handling is also good with or without weight in the bed. Only thing I do not like is how easily the black finish comes off, not good for a place with salty winters like me. But nothing worth returning over. Still 5/5 in my opinion.

Worked great very surprised how well they handle and work in many road conditions. Put on my 2004 Chevy Silverado ss 6.0 awd

Definitely not as stiff as I was worried they would be. Just feels like new.

Update: I towed a U-Haul trailer, over 500 miles, that was packed to the brim and I had a washer and dryer to the front of the trailer. The bed of my truck didn't drop at all. These have also been great for everyday driving.I used these to replace the worn shocks on my 06 GMC Sierra 1500 4x4.Materials:21mm socket (x2 sockets or 1 socket and a crescent wrench)Breaker barRatchet2 jacksThe shocks were fairly easy to install and took me about 1.5 hours. The hardest part was getting the new ones one as they are difficult to compress manually. I had one jack under the tow hitch to lift the truck as far as the jack would go and still was about 2 inches to short. After I attached the upper bolt of the new shock, I had to use a smaller jack to put under the shock and compress it enough to slide the lower bolt through. There were also instructions to bend the brake line if the coil comes in contact with it (brake line that is on the rear driver's side). I didn't feel comfortable bending it so I loosened the bolt (13mm) holding the brake line to the lower shock bracket and adjusted it a little higher. After the truck was lowered, it cleared the brake line by a good margin.I haven't driven on them yet, but they did add almost 3 inches to the ride height. I'm sure they'll be a huge improvement because one of the original rear shocks was busted up pretty good. That left the other to do most of the work.

Fantastic fit. Well built. Works great! Great value for the money...

Pas cher pour de la bonne qualité. Ils sont stiff et parfait pour porter ou traîner du poids...tres satisfait et j'adore merci

Helped my 525000km suspension to get from 36 inches to flare to 37 1/2 inch. Works great and rides really nice compared to my blown out shock. Doesn’t seem to be much firmer then stock shocks.

Very satisfied so far.....after a week...the coil spring is adding in a positive way. ...really like them so far