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Old 10-11-2020, 09:42 AM   #1
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Timbren Question

I'm considering adding a set of 8000# rear Timbrem bump stop devices to my 2019 K2500 Duramax.

Has anyone here done that, and would you care to offer comments on their loaded/unloaded performance?

Thanks.

Rich Phillips
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Old 10-11-2020, 11:02 AM   #2
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I have a set of them on my F150. They work amazing. No worry about an air leak because of a broken bladder or line.
The key is in the setup. Make sure you have room for regular suspension travel, before the timbren makes contact.
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Old 10-11-2020, 01:23 PM   #3
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I was also looking into this for my Duramax 2500. In reading about the Timbrem I also found Sumo. They both seem to have some benefits. I have not done enough reading to have an opinion but I would take a look at both before deciding. Here is a video that I found interesting.



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Old 10-11-2020, 02:59 PM   #4
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I was also looking into this for my Duramax 2500. In reading about the Timbrem I also found Sumo. They both seem to have some benefits. I have not done enough reading to have an opinion but I would take a look at both before deciding. Here is a video that I found interesting.



I went with the Sumosprings, for my F150. I felt the newer tech urethane would ride better and last longer than hard rubber.
I love them and they've done what I hoped they would. And don't have to deal with airing them up.
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Old 10-11-2020, 03:53 PM   #5
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Thanks for the feedback.

Having already looked at the various videos of both brands and looked at their specs, I've been inclined towards the Timbren.

Much easier installation, 8,000# versus 5,000# capacity, and the video comment by the Sumo installation guy about their greater ride harshness when unloaded -- all seem to suggest I'd be happier with Timbren.

Still open to more input, though...

Rich
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Old 10-25-2020, 09:17 AM   #6
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Installed the Timbrens this week, just about as easily as their video showed. Had more trouble lying on my back prying out the old bump stops than anything else.

Local, unloaded ride quality is unchanged, as you might expect. But I'll have to wait until spring to evaluate what they do with the fiver hooked up.

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Old 10-25-2020, 09:26 AM   #7
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Installed on my F-250...no change to truck ride when unloaded, then rides like a F-350 when towing my trailer - really smooths out the tow with my Equalizer weight distributing hitch. Had them on for about 5 years without any issues.
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Old 10-30-2020, 08:25 AM   #8
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Been looking at the Timbrens for my F150, airbags are not an option because of my in bed hitch. Also looking at the Hellwig helper leafs. Any thoughts out there on the leafs vs the bump stops ?
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Old 10-31-2020, 07:55 AM   #9
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Been looking at the Timbrens for my F150, airbags are not an option because of my in bed hitch. Also looking at the Hellwig helper leafs. Any thoughts out there on the leafs vs the bump stops ?

I have been looking at Hellwig helper springs as well for my Duramax 2500. Looks like the Hellwig springs would be a fairly easy install. I have not had much luck finding many discussions on this solution. I could do airbags but that too appears to be messy since I also need to add an aftermarket under bed gooseneck. There was an install solution for Air Lift LoadLifter but it appears to be a messy install. I am also not that thrilled messing with the need for air pressure adjustments.
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Old 10-31-2020, 08:09 AM   #10
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Thanks for the reply. I’m going through the same predicament. The Hellwigs do seem very easy to install. I agree airbags just seem like messy and a pain to maintain.
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Old 10-31-2020, 08:17 AM   #11
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Yesterday we took our first long trip with the Timbrens.

I can report absolutely no difference in unloaded ride quality. And it is hard to imagine easier installation than they entailed.

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Old 10-31-2020, 08:32 AM   #12
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I installed timbrens front and back on my 2017 GMC 2500 Duramax. I have a Big Country 3650SS with a 3,000 lbs pin weight. It handled very well. Rarely tow it anyway except to the dealership for warranty repairs but confident on towing. Idid noticed with the diesel that the front timbrens just touch should have gotten the heavy duty springs in front or snow plow prep. But unloaded ride is good not rough. I also have a Rockwood 2506S as my tag along for traveling in Ontario and today Florida. No issues with it.
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Old 10-31-2020, 09:07 AM   #13
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Good to hear about the unloaded ride. That’s my biggest concern. It’s rough enough without a load and I’m not buying a kidney belt to go to work and back.
Thanks for your input. Much appreciated !
Stay safe, travel safe
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Old 10-31-2020, 09:09 AM   #14
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Thank you also for your input.
We are in Ontario but not heading south this year, at least as far as I can see
Stay safe
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Old 10-31-2020, 09:19 AM   #15
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One thing you can do to Sumo Springs that you cant do with Timbrens, you can trim them. I’ve read where people have shaved off some height on the Sumos if they were engaging unloaded too often for the roads traveled and specific vehicle.
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Old 10-31-2020, 09:42 AM   #16
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Same with us. Stay safe.
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Old 10-31-2020, 09:56 AM   #17
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That’s interesting. I’ve been looking at those too
Good to hear. Thank you.
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Old 10-31-2020, 11:56 AM   #18
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By the way I believe they are made in Canada
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Old 10-31-2020, 12:00 PM   #19
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The Timbrens I bought came with a spacer. With it in, there was not a lot of travel without engaging the blocks, but out, rode like stock.
Only issue was I missed the washer on the first one, and when I went over a bump, it popped off. Called Timbren, and they were super nice, and sent out a replacement quickly.
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Old 10-31-2020, 02:53 PM   #20
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One thing you can do to Sumo Springs that you cant do with Timbrens, you can trim them. Iíve read where people have shaved off some height on the Sumos if they were engaging unloaded too often for the roads traveled and specific vehicle.
IMHO, the microcelluler urethane of Sumo, is a better material.
Which is why i bought my Sumos.
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