3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!
View Poll Results: Did you get the death wobble from 315s or larger, and what did you do to fix/prevent?
Yes(and fixed it by....)
20.93%
No(prevented it by....)
79.07%
Voters: 43. You may not vote on this poll

315s (or larger) and the Death Wobble

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Old 09-12-2006, 03:16 PM
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i've got the 315/70/17's under my truck, and i have no death wobble.. [have had it to 120kph on crappy dirt roads and all smooth].. the only thing i can think of maybe helping me not have DW is relocating the rear spring spacers.. that lowers the rear of the truck down, lowers the rear frame a bit, and in turn clocks the front axle a bit more increasing the caster angle..
Old 09-12-2006, 05:24 PM
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Originally Posted by 2broke2smoke
it always cracks me up when internet experts blame bfgs for a suspension problem ...

they came stock on h2's and they didn't have a rash of death wobble ...

... but to blame the tires is silly
Then explain to me why the same truck has death wobble with BFG 315's and no death wobble with Cooper STT's....I've seen this with 3 different trucks. BFG's are the only tire that causes DW with any consistency. If you were actually able to wear out a set before you got DW, consider yourself one of the lucky ones. Just because YOU didn't experience it doesn't mean it's BS.

I've run my original wheel bearings for 240K, with at least a 36" tire. That doesn't mean I don't believe folks are having the unit bearings fail at 36K.

H2's have IFS, and don't appear to have the same issues with DW as the coil sprung 4 link front ends. In the IFS, there is little or no caster change as the suspension cycles.

And as far as internet experts, I'd say Sage Carli, Don Thuren and Kent Kroeker are the real deal.
Old 09-12-2006, 06:11 PM
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I dont have a good anser but what i did woked for me. I put on (3) different sets of tires. I dont know about brans making that big of a differents but it did i went TOYOS!! REAL good tire325/70/17 on stock wheels 2in,puck with no problems.But i did go through the tires!! One thing i forgot to say make sure thay balance them right i have seen alot say so but not really do it! One of my tires had a ton of weight on it they were going to put it on like that isaid no way. Brake it down turn half out what do you know half an ounce!!! (KEEP YOUR EYES ON THEM)
Old 09-13-2006, 08:00 AM
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I replaced the 265 stock tires with a set of half worn 37 BFG ATs and got death wobble the first time I got the truck up to 65. I replaced all four balljoints, swapped Bilstein 5100s for the worn out Ranchos, and added a KORE steering stabilizer. I ran the same tires for another 15,000 miles and never had another problem. Death wobble can be eliminated with smaller or new tires but they are not the sole contributing factor.
Old 09-13-2006, 08:34 AM
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DSS is a great addition. funny enough my dick cepecks are 35's on 20's witth an E rating and i get a little wiggle on some roads. I think they need rebalanced though as when i have my cousers on (35's on stock 17's load D) they are smooth riding.
Old 09-13-2006, 02:54 PM
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seems like a lot of people who get the have the 315s also upgrade to Bilstein or Rancho shocks and the 2" leveling kit. If I get the 315s, I would be leaving everything stock, will that deffinetly cause DW then?

Does anyone here have the PROCOMPS All-Terrain which are pretty much the same as the BFG A/T but come in a little more comfortable size, 305 v.s. 315
Old 09-13-2006, 03:15 PM
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Originally Posted by VikingDiesel
seems like a lot of people who get the have the 315s also upgrade to Bilstein or Rancho shocks and the 2" leveling kit. If I get the 315s, I would be leaving everything stock, will that deffinetly cause DW then?

Does anyone here have the PROCOMPS All-Terrain which are pretty much the same as the BFG A/T but come in a little more comfortable size, 305 v.s. 315
Checked out their site, I dont see any E rated in 33/35s, all D rated, max load 3k lbs...

Most of the other 33/35s Ive seen are 3200/tire....
And some of the other D rated are higher than E with other tires, depending on brand...
Old 09-13-2006, 03:26 PM
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No death wobble here.
What did I do to prevent it?
Let's see. I went to the tire store. They installed the 315s on the factory rims. I drove away. I hooked up my 31ft TT and drove 80mph accross Colorado. Have put 12k on the tires so far, and no issues.
Old 09-13-2006, 03:28 PM
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I had a set of Pro Comp 33x12.50-17 mudder on my Titan. Not a bad tire but a bit on the pricey side.
Old 09-13-2006, 08:31 PM
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Originally Posted by Stacked97
Checked out their site, I dont see any E rated in 33/35s, all D rated, max load 3k lbs...

Most of the other 33/35s Ive seen are 3200/tire....
And some of the other D rated are higher than E with other tires, depending on brand...
yea, but so are the BFG 315s
Old 09-13-2006, 08:35 PM
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Originally Posted by ptgarcia
I had a set of Pro Comp 33x12.50-17 mudder on my Titan. Not a bad tire but a bit on the pricey side.
actually the procomps are cheaper than then BFG by far.

BFG A/T 315/70/17 = $220ea

ProComp A/T 305/70/07 = $ 175ea
Old 09-13-2006, 11:14 PM
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40K miles so far on BFG 315's mounted on H2 wheels. Stock suspension. Never a hint of death wobble. Not once.

Question: Has anyone running this combination ever had DW? Seems like everyone that has experienced it is either running the bigger tires on stock wheels, has a leveling kit, or both.
Old 09-14-2006, 12:06 AM
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Originally Posted by VikingDiesel
actually the procomps are cheaper than then BFG by far.

BFG A/T 315/70/17 = $220ea

ProComp A/T 305/70/07 = $ 175ea
Wow, BFG's have gone up quite a bit. Not long ago Discount Tire had them for $196 with free shipping. I wouldn't pay $220 for them, thats for sure.
Old 09-14-2006, 01:29 AM
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I've got a thousand bucks that says in my case switching from one tire to another completely got rid on my death wobble. The BFG's have 75% tread left and are useless on my truck. With the 37" BFG's I can't drive the truck faster than 65mph regardless of road surface. Hit 65mph now and they start to go nuts, hit a bump and it'll set off a nasty case of wobble every time. I just mounted a set of Toyo 37" tires that have seen use at 95mph and that includes hitting the same bumps that caused my BFG's to freak out. With the Toyo I don't get the wobble. I would be happy to offer a ride in the truck to anyone in the Orange County (California) area that isn't yet a believer.

I call BS on anyone calling BS to the "silly" tire theory. Put your money where your mouth is. Internet Expert out.

Aloha
Old 09-14-2006, 01:50 AM
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I have 32,000 on my truck and have had the 2" leveling kit and the 35's on scince about 5000 never a hint of DW. I had my dealer do the install on the revtek kit maby they have more experiance with the front ends on these trucks? I know my caster/camber(?) angle is pretty radical if I dont keep the tires rotated you can see the uneven wear on the fronts. Btw my local dealer sells 3/4 tons all day with the leveling kit and BFG's both mud and all terrain. They are mostly hemi's tho. Is DW a problem just on the cummins?


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