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Open Roads Forum  >  Tow Vehicles

 > Timbren/Axle Clearance for Empty '16 Ram 3500 SRW

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Desert SW

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Posted: 01/09/19 06:33pm Link  |  Quote  |  Print  |  Notify Moderator

Gonna be installing some Timbrens on our '16 Ram 3500 SRW tomorrow.

Timbren recommends .5" to 1.5" inches of Timbren/axle clearance empty. Looks like I'm gonna get about 1" if I don't use the 1" spacer. Obviously little to no clearance with the included 1" spacer. Timbren also sells optional .5" spacers.

I really want to reduce sag as much as possible when I'm loaded.

What has everybody found to be the least amount of Timbren/axle clearance you can use without effecting the empty ride much?

Thanks!

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Posted: 01/09/19 06:36pm Link  |  Quote  |  Print  |  Notify Moderator

To reduce sag as much as possible, install the spacer. To have the best unloaded ride, do not install the spacer. This is a 50/50 type answer, not alot of different ways to slice it.

Question is how much payload you're hauling, or what is the need for the Timbrens?.


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rhagfo

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Posted: 01/09/19 08:15pm Link  |  Quote  |  Print  |  Notify Moderator

What are you towing that you need Timberns with a 3500.


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Posted: 01/09/19 09:39pm Link  |  Quote  |  Print  |  Notify Moderator

GO with the 1" clearance empty

Don't want to be bouncing on/off Timbrens when running empty

1" clearance will allow Timbrens to come into play when loaded


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Posted: 01/10/19 05:13am Link  |  Quote  |  Print  |  Notify Moderator

1" was about same as ours... it would hit unloaded on HARD bumps/bridge crossings, but was good 95% of the time... We had about 3200lbs pin and they did very well loaded.


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IdaD

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Posted: 01/10/19 07:23am Link  |  Quote  |  Print  |  Notify Moderator

I didn't use the spacers on my 2500 and have probably about a 3/4" gap. I don't notice any difference in the unloaded ride. When I load up the fifth wheel the truck doesn't really squat any less but it does have a better (firmer) ride going down the highway and it handles bumps at speed better. For $180 or thereabouts I think they're a really worthwhile upgrade, and less fuss than airbags. Even where they aren't "needed" they are an improvement, or at least they are in my application.


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Posted: 01/10/19 08:11am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the replies. Based on everybody's input looks like 1" is a good start. Gonna be hauling an in-bed camper on our Ram 3500 SRW (w/4k payload) that'll weigh approx. 3,700 lbs. loaded (camper scales at 2,950 lbs. empty plus 250 lbs. of water and 500 lbs. of gear). Usually get about 3" of sag with this kind of weight on the rear. Would like to get this sag down to no more than 2" with the Timbrens with 1" of clearance when empty. If it sags more than 2", I may add some 1/2" spacers (with 1/2" of clearance when empty) and hope it doesn't affect the empty ride too much.

Cummins12V98

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Posted: 01/10/19 08:16am Link  |  Quote  |  Print  |  Notify Moderator

Does the truck ride level with camper loaded? If so leave it alone.


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Posted: 01/10/19 08:19am Link  |  Quote  |  Print  |  Notify Moderator

otrfun wrote:

Thanks for the replies. Based on everybody's input looks like 1" is a good start. Gonna be hauling an in-bed camper on our Ram 3500 SRW (w/4k payload) that'll weigh approx. 3,700 lbs. loaded (camper scales at 2,950 lbs. empty plus 250 lbs. of water and 500 lbs. of gear). Usually get about 3" of sag with this kind of weight on the rear. Would like to get this sag down to no more than 2" with the Timbrens with 1" of clearance when empty. If it sags more than 2", I may add some 1/2" spacers (with 1/2" of clearance when empty) and hope it doesn't affect the empty ride too much.


Now far over the trucks 7K RGAWR are you running? Did you switch to 19.5 rims and tires?


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Posted: 01/10/19 10:03am Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

Now far over the trucks 7K RGAWR are you running? Did you switch to 19.5 rims and tires?
7K RAWR. Stock OEM tires (combined) are rated for 7.2k. Will have less than 7k on the rear axle. Will reduce water, gear, or both, if need be. Will also be under 11.7k GVWR. As I stated, the camper scales empty at 2,950 lbs. As long as reasonable care is taken while loading it should be easy to stay under the truck's 7k RAWR (and 4k payload rating)

If I was hauling a larger Lance or Artic Fox, my 3500 SRW would be overloaded---even with the camper empty in many cases. Yes, in these situations 19.5's would help reduce the chance of a tire failure, but it doesn't raise the payload rating for the rest of the truck. Really liked the smallest/lightest Artic Fox, the 865, but with just a moderate option set weighs almost 3.7k empty (dealer scaled).

Cummins12V98 wrote:

Does the truck ride level with camper loaded? If so leave it alone.
Haven't picked up the camper yet. However, I've had 3,000 - 3,500 lbs. over the rear axle many, many times. Always sags approx. 3"---way too much for me. Get flashed non-stop by on-coming traffic at night.

* This post was edited 01/10/19 12:17pm by otrfun *

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