Most Popular Timbren for 2004 GMC Sierra

Added these Timbrens with two 1" spacers on each side on a 2011 GMC Sierra with a 2" lift. Fit great, easy to install. Was more work getting old bump stops off than installing the new Timbrens with spacers. I did need to get 2" longer bolts than what was included to complete the install, but that was to be expected.

Received yesterday (quick shipping!), installed today on 2015 GMC Sierra 1500 4WD Crew Cab short box. What a difference between the Timbren's and OEM bump stop from GMC. Installed for towing large travel trailer. Used floor jack under rear hitch to raise up truck to get enough room for socket to install bolts. Use 10mm socket to remove OEM bolt & bump stop, use 17MM socket to install new bolt and Timbren. Very east installation process.

Highly recommend spending the money. My last pickup I bought Sumo Spring rubber stops and they seemed squishy to me, where these are hard and hold up very well. Holds my Boss V-XT 8'2" up where it needs to be. Don't go cheap! You'll regret it!

Works very well in the front of the truck. Made the truck sit 1" higher. Supports the snow plow well.

This review is on a timbren air spring ,I bought this on a Saturday night ,went out of town Monday morning and got in on Thursday afternoon ,wife said the box had arrived Tuesday and put them on this morning on our 2006 Chevy k-3500 ,my guy had the truck in our shop for an oil change and I asked him to put it on, came back 45 min later and he was done with the spring installation and the oil change ! I asked him how hard it was and he said it took him longer to figure out which parts in the kit he needed that the actual install ,said it was about as easy as it gets .Well ,now for the test drive we drove the truck empty ,pretty much as stock ,rode real well.Then we put a Gaylord box that weighed 4506# and drove the truck ,WoW ,What a difference ,truck rode great and handled well ,went over railroad tracks,really handled well and rode great ,I wish I'd have done this years ago ! I highly recommend this product and commend etrailer on their good service and what made me decide to purchase the timbren product was the you-tube video ,after I saw that ,I placed the order ,it looked so simple to install and it went on just like on you-tube

i was pleasantly surprised to how easy installation was

I don't know what I thought this was, but, it definitely was not that. In my mind, this is just a fancy spring stop that replaces the one supplied by the manufacturer. Because of the thickness, my truck bottomed out more and quicker than with the factory stops. I had in my head (from reading from others) that this would help the suspension softness. It did not. I ended up putting airbags on the truck. It had weaker springs due to age (2005 model) and the stop would not help that. The airbags were a blessing. They eliminated the too-soft ride. Had I put the airbags on first, I doubt I would have ever put this product on. (Although we did find out that the factory stops were worn out and needed replacement.) I can not, and will not, degrade this product as it is well made and it was exactly as it was advertised. It just was not the product that I needed. Make sure what you need BEFORE you buy.

Sale rep was very helpful and made the sale easy. Fast shipping

Basically I was totally disappointed with the product. Instructions were very poor, at one point they said to install by using the rear hole of the two, there is only one hole in my truck. Instructions said to replace sway bar link bolt with the supplied bolt in the hardware kit. There were no nuts included to use the supplied bolts. My factory bolts were not the same size as the supplied bolts so nuts would not fit. Installation illustration was very poor. An actual picture would have been so much better. After install, there was no difference in my truck! This is no reflection upon etrailer. Steve even said that I could return if unhappy in any way but too much hassle to remove. Disappointment is all on timbren. I even tried calling timbren but they didn't answer and did not return my call. Thanks

My Timbren kit arrived quickly and was exactly as described. The fit on my '06 Sierra was perfect. Took me about an hour to install the fronts and an hour for the rears. The timbrens levels out my truck and elminated poor handling I was experiencing with a heavy load in the bed of my truck. I'm carrying equipment weighing about 1200 lbs in the bed of my truck. I was down on the front bump stops and had less than 1" of clearance on the rear stops. The timbrens leveled the whole truck and easily handle the load. I'm much happier with the ride and handling of my truck. It no longer rolls side to side through the corners and tracks normally on the freeway; even in high cross winds. etrailer.com provided good customer service and I really apreciated the fast updates on the status of my order.

Awesome product awesome service awesome delivery just simply awesome

I have purchased two sets of timbren rear suspension products for my 04 gmc and 21 gmc both set preformed as promised don't have o4 any longer but last I heard still doing there job. Have ordered several products from e-trailer great customer service and ease of ordering. Very satisfied with tibren and e-trailer would recommend to anyone.

The product is exactly as described and the installation was extremely easy!!! Pic shows the OEM (orange) versus the Timbrens (black).

After a year of ownership and towing my toy hauler many times, I’m happy I went with Timbrens as opposed to air bags. Easy install, maintenance free, and they really do help keep things level.