Sway bars?
A front sway bar is not going to creat more understeer in vehicle compared to with no sway bar... at least not on our old trucks.
For silly argument sake, if it did, why on heavens earth did Ford start adding them in the late 60's? To ensure more truck sales due to crashed sway bar equiped vehicles?
Also, adding a rear sway bar and not adding a front sway bar is going to make understeer worse, not better. One of the reasons the trucks understeer so horribly to begin with is that the rear is soo stiff and the front so soft. The rear wants to stay flat thru a turn even without the sway bar, on account of the stiff leafs. Adding a rear bar will compound this.
The flexible chasiss is another culprit, which allows the front and rear to do thier own thing. A stiff rear with proper wheel/road geometry vs a soft front end, twisted up with poor wheel/road geometry.
You want the truck to be netural handeling, you'll have to stiffin up the front significantly and also want a way to control the wheel/road geometry, aka swaybar. Then likely soften up the rear, and doing something about weight distribution is going to be interesting. But, then, you're 250 is a 1/4tonne... hauling a small load to offset cab weight.
Having driven my Cherokee, and my Mustang with front sway bars disconnected, (for off road articulation, and for dragstrip launches, respectivly) and having driven late 90's F250's with front swaybars vs my old truck with none, I'm rather confident a sway bar added to the front of mine, is going to do nothing but good in the handeling department.
I'm no expert, but these are my experiences, observations and understandings.
Last edited by cleanLX; Dec 16, 2004 at 11:29 AM.
I have to send the Hellwig back, reconnect the old sway bar and then drive the MH to a Hellwig installation service to see what the problem is. Anyone have a similar experience?
as far as a rear bar goes,
LET IT BE KNOWN!!!!!
IT IS UNSAFE TO HAVE A REAR SWAY BAR AND NO FRONT SWAY BAR!!!!!!!!!!
For your own sake NEVER do this, as you will spin out and crash your truck the first time you try to take a turn at speed. I have tested this theory, and it is true. although I used my R/C car to do it, none the less it is a fact, that is why you never see it on ANY oem vehicles.
Ford Trucks for Ford Truck Enthusiasts
Robert P.
Possibly my '69 250 is diffent from all the rest. Even on non-hussled sweeping corners the inside front of my truck raises to beat heck. If I had stiff coils this would not be the case.
Adding a front bar will keep the front of the truck flatter, putting more weight (rather not allowing as much weight to be unloaded) on the inside tire than without a bar. You realize the bar ties the 2 sides of the suspension together, and mounts to the chassis, and any body roll is only achieved thru over comming the torsional limits of the bar itself. Knowing that, you must realize that adding a bar to the front will help load both front tires during cornering, not promote loading to one side as I think you just indicated... ?
Again, adding a rear bar is not going to add load to the outside tire as compared to non-bar'd. Rather it'll attempt to more evenly distribute the load from side to side. And as stated above, running a rear bar and no front is not a good idea at all.
I agree a rear bar on an unloaded truck is a waste.
If you understand that sway bars are benificial when loaded or top heavy, apply that same theory to unloaded. The sway bar applies force from one side to the other whether the truck is loaded up with side boards and wet/frozen fire wood on, or empty. Either way that sway bar attempst to keep body roll under control... thrus loading the tires from side to side more evenly than if no bar is present.
Now, the drag race stuff would be a fair comment if my car was a trailer queen, but it's not. It's street/strip, and driven to and from the track, and, gets driven to and from work, and is used as a pleasure toy in the mountians. I have driven it on the street, on street radial tires of equal size front and rear, with the sway bar unhooked on occassion, and it's a down right sponge. 99% of the time it's driven on the street, the sway bar is hooked up, and the handeling/control/responsivness is night and day.
My Jeep, same deal, sway bar unhooked for trail duty, but, sometimes I get lazy and leave it disconnected for the drive home, and, the handeling is nerve racking by comparisson.
Now neither is a '69 F250, but all the principals apply.
Now, I'll admitt I'm not the sharpest tool in the shed, but you theory on sway bars is most confusing given my knowledge and experience.
I do not mean for this to be an attack, or nasty at all. Honestly I don't, but when you say adding a sway bar to the front of one of these old trucks is going to make handeling worse, that is just bad information.
The last word is yours sir.
I'll not explain it any further.
Mike.
your last post intregues(sp?) me so I'd really like to discuss a bit further.
your 250 setup, with the stiff front springs... did your swap some non-stock ones in? I cannot understand why my front end is so soft. maybe some joker threw f100 coils in up there at some point in it's past? My front end goes over a bump/pothole and it soakes it right up, but when the rear hits it, it'll darn near pole vault you thru the roof. have to keep the lapbelt sinched down if not for safety, then to keep you in the seat.
I mean, if you've put stiffer than 'normal' springs in to make it work good that's cool, but for a truck such as mine with with spring rates so un matched, wouldn't such a truck(mine) benifit from a front swaybar?
and your comment, understeer becomes oversteer controlled by throttle... you're cheatin'! Useing the throttle to overcome the inherent dynamics of the vehicle.
.I may have come across as a little heated, and, I don't know why stuff on the internet can do that to folks... 'er... me... we're all meant to be helping learning.
I'd like this to continue as a discussion rather than me making light of you or vice-versa.
Now...
I'd love to hear about you AMX.
Don't hear of many of them still running? I've not see one since the mid 70's.
360... 401?



