Yes, I understand about the slabs. We still have a few washboards like that here and that is where I tried to duplicate the problem, but as you have said it could very well a difference in the spacing between the joints.
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07' SR5 DC 4x4, 5.7, TRD
Toyota SS steps
ARE MX cap
AMP bed step
DIY underseat storage
Weathertech Floor Liners
Weathertech Vent Visors CBTMA member
Does having the bed Line-X'd help? I just had mine done with only a few miles on the clock and don't notice a bed bounce. What I notice is that the suspension is a little stiff and rebounds a little fast in the rear causing a double or triple bounce. If it was adjustable I would slow the rebound down and I believe it would go away.
I have read so many posts on this subject and yet to have experianced myself, and I live in KY where I drive concrete interstates at all speeds and have yet to feel anything different than my 4runner or my old tacoma, so what is the deal, The only thing I notice is if I hit a major hole in the road the bed will bounce a little, but its a bed and is not connected to the cab so it will give some, but did I get lucky and get one that does not have the bed bounce?
Get on the bluegrass parkway in etown and head toward lexington. Enough to make my wife barf.
I've driven too many other trucks (F250, F350, Chevy & Dodge 2500/3500, every major 1/2 ton, plus frontiers and tacomas) and owned nearly as many to say that this affects all trucks. Never experienced anything like in the tundra. The G1 tundra and T100 were fine as well. If it wasn't for the 5.7L being so bad *** I'd hate the truck.
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~Michael
2008 Toyota Tundra 5.7 2WD - Toy Hauler / 2006 Toyota Sienna Limited - Kid Hauler / 1993 Toyota MR2 - Autocross Car
Mods: Tekonsha P3; Tow Mirrors; TRD Wheels; TPMS Pipe Bomb
Does having the bed Line-X'd help? I just had mine done with only a few miles on the clock and don't notice a bed bounce. What I notice is that the suspension is a little stiff and rebounds a little fast in the rear causing a double or triple bounce. If it was adjustable I would slow the rebound down and I believe it would go away.
why would Line X help? that doesn't weight it down to much...Now would a sway bar help the bounce issues I'm sure Hellwig would sell a lot of them.This topic has been beet to death.
to bring the harmonics down to a tolerable level you need at least 120lbs. to start off. But as I learned the more weight you add the better the ride. The trade off was a loss of 2-3 mpg.
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'07 SR5 DC 5.7 silver sky metalic
5% tint rear windows, 2 Flowmaster 40 series w/ dual tips out the back, Carriage Works polished grill overlay w/emblem, 3-piece bumper inserts (not CW), Airaid, Ground Force rear shocks, DJM 3" arms, belltech flip kit, 22" BOSS 329 w/ 305/45/22 General grabber UHP, G2 bakflip.
The best way to fix bed bounce problem is Load your truck up with a full bed of top soils or wood chip. Then soak it up wih water (it was rains in my case) and let the truck seat for 2 days before you unload the stuffs. I drove 121 miles (I-476 PA to DE) concrete Ex-way going 70 - 75 mph and never experineced any bed bounce.
he also stated that in the videos, the tires has to be air up past recommended psi, and also if bed bounce was that bad why doesn't ford go public with it? i was like true... he was telling me what peoplee are hearing/feeling is something with harmonics... that some of the guys found a "fix for it"....i dont know if it'll work or not, but he said the guys at the test facility put 5-10lbs weight above each tire in the rear, and the problem disappered...
if some of you guys try it lmk...
There is no problem but you need to add 100 lbs. of weight to "fix" it?
I'm beginning to think the best "fix" for my Tundra is a FOR SALE sign. Although it may not be the cheapest.
I think there are various degrees of "bounce" you guys are talking about. Just about every pickup truck has some kind of bed wiggle or flex. Toyotas happen to have more of it than most other trucks. I specifically remember following older Tacomas and seeing them having lots of wiggle when driving over speedbumps or railroad crossings. My older 2005 Tundra AC had much worse bed wiggle than my 2007 RCSB - if you had just a little too much air in the rear tires or if they were a little out of balance, the bed would vibrate pretty badly at certain speeds on the freeway (asphalt, not concrete). I'm sure the problem in the 2007+ Tundras is in the combination/interaction of the rear frame flex and the bed mounting scheme along with the flexible nature of the bed itself. My new truck doesn't have any worse bounce or wiggle than other trucks I've driven. You DC Tundra guys must have it worse due to the longer wheelbase and consequently greater flexing of the back end. I agree with others that the big 3 would have capitalized on the Tundra's claimed bed bounce problem by now in their commercials. For the guys that actually have lots of bed bounce, I doubt there will be a simple fix for it since it's more of a structural issue and that's just the way the truck is designed. Running lower rear tire pressure will definitely help to some degree.
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2007 Tundra 5.7 4x2 RCSB slate metallic
2005 Corolla - all stock, cause it's the wifes
1986 Mustang GT - the stereo is under the hood
1990 Corolla - cause it was really cheap
I have the bed bounce here in Denver... it's not just a CA thing. I think this is novel approach to the problem... it may change the ressonant frequency. I would imagine changing the suspension damping would have a greater effect. I wonder if the TRDs have the problem too (they have a stiffer suspension).
just wondering if somebody can make a poll for this concern for the trd and non trd models because i m wondering if it is mostly with just the non trd models
i have non trd and it sucks smooth asphalt 40 - 50 mph
It all seems to be a harmonic thing.....Think of it like this.... the slabs are a certain distance apart, going a certain speed, the truck will buck just like that Ford video showed. Just as the bed flexes, down the next crack comes and pushes it back up. Just like the Ford video with specific spacing between the bumps that they hit. I guarantee you could calculate the wheel base of the Ford and find similar spacing that would yield similar results. The frame shape in the rear certainly doesnt help the bed support at all either. Point being, every light duty truck will have some degree of bed bounce. My other tundra would bounce too, and my 01 Tacoma bounced enough to hit the cab and make a dent and crack the paint. It is a pretty tame trade off for a truck this good.
TRDs are definitely NOT immune. Mine was so bad it gave me a headache, but I was very lucky in that they grinded the freeways smooth for the majority of my daily commute shortly after my purchase. The issue I think is not as scientific as many people are guessing ... simply put, stiff suspension (for increased payload) + concrete whoop-de-doos = brain pain. No way around it other than to modify your suspension or add weight. I bought a SnugTop for my truck and just the weight of the shell made a significant difference. People mix this issue with the Ford video and the difference in frame technology ... but a stiffer frame would only make the ride even worse. Try driving a U-Haul down the same stretch of road and your eyeballs be shaken from your skull ... the greater the payload, the stiffer the suspension, the worse the ride. The Tundra is almost a 3/4 ton truck in reality, so it makes sense. I wish Toyota had a better response ... they could have at least done some testing and offered to remove people's overload leaf and swap shocks as a tradeoff for smoother ride vs. less payload for those that don't need the weight capacity.
Re: "Bed Bounce Fix" according to a good source
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