Jump to content

Fox 2.5 HTO installed.

Epsilon Plus
 Share

Recommended Posts

UWSkier Enthusiast

UWSkier

Posted
Posted
8 hours ago, kylant said:

I have a set for sale, less than 2k miles on them. Will make a very good deal on them. 

Why parting with them after so few miles?

Epsilon Plus Enthusiast

Epsilon Plus

Posted
  • Author
Posted

Truck should be easily 1.5+" lower in the front. All HDs are raked. Even ZR2s are higher in the rear.

 

I bet your bars are cranked.

Chuck FB Enthusiast

Chuck FB

Posted
Posted (edited)
13 hours ago, Epsilon Plus said:

Truck should be easily 1.5+" lower in the front. All HDs are raked. Even ZR2s are higher in the rear.

 

I bet your bars are cranked.

The clearance of the A arms to the jounce bumpers would also bare that out as well as the cv shafts and tie rod angles but heres the thing with the fender to ground or axle centers, the rear fenders relative to the straight section of frame are lower than what the front fenders are. Or put in a different context, when the front and rear fenders for example are the same distance to the ground, the front of the box at the top of the box side is still lower than what it is at the rear of the box. That front to rear fender height design gives the illusion that the truck is more level then it really is. I assume they did that for a reason of a look they were going after. Before I was able to measure mine I had a bak flip cover and a rubber bed mat in it and I do have the fifth wheel prep so that all adds weight, so I was at about 3/4 of an inch higher in the rear on a new truck in part due to those add ons. Hard to say what this truck in question of PBNB's did in its former hands life but it may be settled down some in the rear due to carrying weight or towing with a heavy tongue weight. 

Edited by Chuck FB
kylant Enthusiast

kylant

Posted
Posted
16 hours ago, UWSkier said:

Why parting with them after so few miles?

I picked up a set of custom tuned shocks from Accutune

PBNB Enthusiast

PBNB

Posted
Posted
1 hour ago, kylant said:

$800 plus shipping

That's a great deal! From what I have seen online. What made you take them out? Did you go back to the Ranchos?

 

Do you have any pics of your shocks that you can post?

Epsilon Plus Enthusiast

Epsilon Plus

Posted
  • Author
Posted

I purposely hit speed bumps now with zeal. The front soaks them up. The rear still hops a bit on those heavy leafs with no weight on them. The bump is still there, but the jolt you'd normally feel in your lumbar is gone.

 

Day to day it's still a bouncy truck as an HD, but they look out all the harsh "hits" if that makes sense. The Bilsteins were like having a piece of rebar welded between the perches. The only thing they will do is keep the body roll out and probably do better with trailer porpoising if that's an issue on ones set-up. Unloaded they ride like a shopping cart.

  • Haha 1
Chuck FB Enthusiast

Chuck FB

Posted
Posted (edited)
20 minutes ago, Epsilon Plus said:

I purposely hit speed bumps now with zeal. The front soaks them up. The rear still hops a bit on those heavy leafs with no weight on them. The bump is still there, but the jolt you'd normally feel in your lumbar is gone.

 

Day to day it's still a bouncy truck as an HD, but they look out all the harsh "hits" if that makes sense. The Bilsteins were like having a piece of rebar welded between the perches. The only thing they will do is keep the body roll out and probably do better with trailer porpoising if that's an issue on ones set-up. Unloaded they ride like a shopping cart.

Where would you rate the original Rancho's in the mix of shocks you have run so far ?. 

 

I still have the belief that if you are running a lot unloaded that you should try experimenting with lowering the tire pressures down to the minimum pressure required for your axle weights and get a little more flex from those large tires. Yes the TPMS will throw a tantrum unless set lower but I would be curious to hear your impression and for that matter your wife if she would notice a ride difference. Tire pressures, one of the few no cost items one has left these days !. 

Edited by Chuck FB
  • Thanks 1
Epsilon Plus Enthusiast

Epsilon Plus

Posted
  • Author
Posted

Right now I'm at 40. I don't think I'd want to go under 35 but I can see if it helps. TPMS isn't a worry. My Pulsar LT allows me to adjust the threshold. 

  • Like 1
Chuck FB Enthusiast

Chuck FB

Posted
Posted
3 minutes ago, Epsilon Plus said:

Right now I'm at 40. I don't think I'd want to go under 35 but I can see if it helps. TPMS isn't a worry. My Pulsar LT allows me to adjust the threshold. 

That's been a while now since your tire size and type was brought up but sounds like your running a bit lower than a while back. The LT metric tires they caution going below 35 psi for highway speeds, yet the floatation series (TRA floatation on the chart that are inch based sizes ) are a minimum of 25 psi. Of course based on axle weights though but I know it throws a person to hear low pressures like that when one is used to hearing high pressures for max weights on HD trucks. Also its not really suggested to drive really fast highway speeds ( Texas speeds ) in really hot weather with tires right on the line for pressure to weight, to give a margin of safety. Perhaps when the weather cools off to something more sane during the winter ( I assume your in a fairly hot location ) you could try an experiment with just the rear tires set lower initially and see if it mellows out that kick a bit on expansion joints etc. 

Epsilon Plus Enthusiast

Epsilon Plus

Posted
  • Author
Posted (edited)

@Chuck FB

 

I was actually at 45. I dropped to 40 yesterday and looks like I have good contact patch and it feels like the softest it's going to be short of bar and spring changes. Every bump and crevis still transmits but there is no harshness or jolting. I can hit speed bumps at full speed and the truck feels even softer and soaks them up. The combo is working well. 

 

I'll try 35 next and chalk line them.

 

Thanks.

Edited by Epsilon Plus
  • Like 1
UWSkier Enthusiast

UWSkier

Posted
Posted
8 hours ago, Epsilon Plus said:

@Chuck FB

 

I was actually at 45. I dropped to 40 yesterday and looks like I have good contact patch and it feels like the softest it's going to be short of bar and spring changes. Every bump and crevis still transmits but there is no harshness or jolting. I can hit speed bumps at full speed and the truck feels even softer and soaks them up. The combo is working well. 

 

I'll try 35 next and chalk line them.

 

Thanks.

apples to hand grenades, but I was running the factory Michelins on my truck down around 50/45 F/R for several months and they started getting loud.  Put them back up to factory spec before the 2500 mile RV tow back from East to Arizona and they got much quieter after the first 200 miles.

 

I like the ride with them softer, but the noise got on my nerves.  Think I'll keep them 55/55 or thereabouts for non-towing.

Chuck FB Enthusiast

Chuck FB

Posted
Posted
4 minutes ago, UWSkier said:

apples to hand grenades, but I was running the factory Michelins on my truck down around 50/45 F/R for several months and they started getting loud.  Put them back up to factory spec before the 2500 mile RV tow back from East to Arizona and they got much quieter after the first 200 miles.

 

I like the ride with them softer, but the noise got on my nerves.  Think I'll keep them 55/55 or thereabouts for non-towing.

That's interesting, I wonder if the more moderate tire pressures allowed for a wear pattern that brought out that sound. I know some tire treads are susceptible to a wear that causes the leading edge of the tread blocks to stand up higher than that the trailing edge if not rotated fairly often. The rotation typically would be rears straight forward and the fronts crossed to the rear to reverse the rotation of those two. A couple of years ago my brother was struggling with bad noise and vibration on a set of Goodyear Duratracs on a TJ, light vehicle for the size of the tire but oh boy did those tires have the most stupid wear on them like a wavy pattern all around the tire and he had not been rotating and then by rotating the noise and vibration was even worse, had the tire shop re balance them but it was all futile, had to throw the tires off as there was no fixing that mess and the Goodyear tire shop admitted that much that the Duratrac not being rotated has issues ( they seem to have issues anyway ). So he bought a set of Toyo A/T3 and runs the same pressure and they have been wearing perfectly and are way more quiet then those Duratracs were new. I am just surprised the factory Michelin tires are even capable of making noise. 

  • 4 weeks later...
PBNB Enthusiast

PBNB

Posted
Posted

I have ordered a set of Centramatic balancers as they are supposed to help with uneven tire wear like cupping and also help with the noise as the tires get strange wear patterns. I am looking forward to putting them to the test. 

 

I noticed my Falkens getting a bit noisier on our last trip.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined

  • Who's Online   1 Member, 0 Anonymous, 2,448 Guests (See full list)

  • Latest Articles

  • Posts

    • B14Sierra
      Cam chain tensioner question

      By B14Sierra · Posted

      So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • dna9656
      No low range 4 x 4

      By dna9656 · Posted

      My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • Chuck FB
      summer road trips in the 2026 2500HD

      By Chuck FB · Posted

      I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...