Monroe Shocks & Struts 58637 Shock Absorber And Coil Spring Assembly

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

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.

Good stout shocks as far as overload shocks go. Stiff when unloaded, which is to be expected. Loaded truck is great, little squat and not bouncy. Recommend these for hauling RVs and loaded trailers.

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!