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05-28-2015, 10:46 AM
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#1
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Senior Member
Join Date: May 2013
Posts: 513
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Suspension Enhancement
Thoughts/Suggestions:
2010 GMC Sierra 1500 w/5th wheel.
I installed Timbrens on rear which gave me a very rough ride over bumps but helped the rear sag.
Remove Timbrens and installed rear air bags. Inflated to 35psi also tried 50psi. There seems to be more sway but the ride is better.
Ideas Please?
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05-28-2015, 10:50 AM
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#2
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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If you still have P rated tires, I would strongly suggest some LT LR D or E tires.
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05-28-2015, 12:31 PM
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#3
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by OldCoot
If you still have P rated tires, I would strongly suggest some LT LR D or E tires.
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I'd have to agree.
Most likely a p rated tire issue.
TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "9 nights"
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05-28-2015, 05:48 PM
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#4
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Senior Member
Join Date: May 2013
Posts: 513
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I will consider the tire type change when time comes to replace them.
Good Idea, Thank You
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05-28-2015, 05:51 PM
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#5
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Senior Member
Join Date: May 2013
Posts: 513
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I just got back from a short trip, set air bags at 80 psi and it was awful. Made suspension to stiff.
50 psi seems to be about right.
Any thoughts on aftermarket sway bars? Dealer said, one is not available from GM.
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05-28-2015, 06:01 PM
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#6
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by mfMcFroggierPod
I just got back from a short trip, set air bags at 80 psi and it was awful. Made suspension to stiff.
50 psi seems to be about right.
Any thoughts on aftermarket sway bars? Dealer said, one is not available from GM.
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You didn't answer about the tires.
If you have p rated tires no suspension mod will help .
TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "9 nights"
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05-28-2015, 06:14 PM
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#7
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Senior Member
Join Date: May 2013
Posts: 513
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They are P rated tires.
Your probably right on track with the LT vs sway with the P's. All my other trucks had LT's.
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05-28-2015, 06:15 PM
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#8
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by TURBS
You didn't answer about the tires.
If you have p rated tires no suspension mod will help. TURBS
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Agree 100%. As long as you have P tires on the truck, you will have sway regardless of any & everything you can add to the truck. Listen to the posts of experienced folks. You're fighting a loosing battle.
__________________
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05-28-2015, 06:33 PM
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#9
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Senior Member
Join Date: May 2013
Posts: 513
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My original reason for the mods was for tail sag. It seems I'll either get a harsh ride or a little sway. The add-on did solve some of it but created others...
And why is it that manufactures don't put LT's on 1500 trucks? More than likely they will be used to tow or haul loads.
Do it right the first time...
Just buy a 3/4 ton truck like I had before.
Thank You for the input, it is much appreciated.
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05-28-2015, 06:50 PM
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#10
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Senior Member
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
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Quote:
Originally Posted by mfMcFroggierPod
My original reason for the mods was for tail sag. It seems I'll either get a harsh ride or a little sway. The add-on did solve some of it but created others...
And why is it that manufactures don't put LT's on 1500 trucks? More than likely they will be used to tow or haul loads.
Do it right the first time...
Just buy a 3/4 ton truck like I had before.
Thank You for the input, it is much appreciated.
Sent from my iPhone using Forest River Forums
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A one ton is not much more money over the 3/4.
Go to one of the big three and build two, one a 3/4 the other a one ton.
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
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05-28-2015, 06:52 PM
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#11
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by mfMcFroggierPod
My original reason for the mods was for tail sag. It seems I'll either get a harsh ride or a little sway. The add-on did solve some of it but created others...
And why is it that manufactures don't put LT's on 1500 trucks? More than likely they will be used to tow or haul loads.
Do it right the first time...
Just buy a 3/4 ton truck like I had before.
Thank You for the input, it is much appreciated.
Sent from my iPhone using Forest River Forums
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They use p rated tires on 1/2 tons because there cheaper then lt's .
And they meet the load rating 1/2 ton trucks carry.
TURBS
08 duramax tuned n modded, 32bhok Sabre
2015 camping "9 nights"
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05-28-2015, 07:00 PM
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#12
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by mfMcFroggierPod
My original reason for the mods was for tail sag. It seems I'll either get a harsh ride or a little sway. The add-on did solve some of it but created others...
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Airbags and LT LRE tires are all that are needed. Let the airbags down to 10# and the tires down to 30# rear, 35# front when not towing and you have the best of both worlds. I run 60#front & 65# rear and 50# in the airbags while towing and get no sway. Trailer tires are kept @ 65# cold.
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05-28-2015, 07:08 PM
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#13
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Senior Member
Join Date: May 2015
Posts: 409
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I run 70 pounds in the truck tis and 80 in the trailer tires. Seems to work great.
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05-29-2015, 03:36 PM
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#14
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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I bought my F-150 in 2013 and immediately added an extra leaf spring on each side and it made a big difference in the sag and bounce and it didn't negatively affect the ride. That same year I towed our 5200# Roo to the east coast and back on P rated tires with no issues.
Last year the P tires needed to be replaced so I upgraded to Michelin LTs because I knew we would be upgrading our trailer to something heavier and longer than the Roo, which we did this Spring.
The axles and chassis are still the lighter non-HD Payload version which means my GVWR is not changed, but the LT tires and leaf springs do help.
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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05-29-2015, 04:12 PM
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#15
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Senior Member
Join Date: May 2013
Posts: 513
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245/70R17
It appears that only a LR E will be available. When my tires are due for changing I will switch to LT.
I did not want to add a leaf when I originally researched because it is not a simple change-back if I did not like it. The other methods are unbolt / remove. But there are the cheaper ways or progressively more expensive ways of solving the problem.
1) Timbrens
2) Air Bags
3) Adding a Leaf
4) Tire changes
Thank You for all of the feedback.
It will all be considered as time & $ permit.
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