This is topic New upper/lower control arms... what else? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 9Roush8 (Member # 2472) on :
 
well picking up a set of maximum motorsports adjustable lowers and steeda aluminum uppers. Now what else can i do to keep the tires planted with minimal tire spin?>?? was going to invest in hp but things changed now suspension! [burnout]
 
Posted by 9Roush8 (Member # 2472) on :
 
oh yeah what is the difference between 28-31-33 spline axles?? just stronger the more you go up?? and if i go bigger do i need to fabricate anything? thanks again
 
Posted by Mr JoCo (Member # 1549) on :
 
u need to get a different carrier if you change spline number.
 
Posted by mtbaughs (Member # 4052) on :
 
I like your choice for lower control arms. I don't suggest using the uppers you've chosen. Stiffer bushings in the upper control arms typically just lead to rear end bind. If you want more than that out of the suspension I'd look into a torque arm/panhard bar combo. Typically 31 spline axles are used for most street cars. 33's I'd say are used more on a dedicated drag car for extra strength. The axle splines must match your diff or posi spline count.

[ December 01, 2004, 11:55 PM: Message edited by: mtbaughs ]
 
Posted by mustanggt5091 (Member # 444) on :
 
quote:
Originally posted by mtbaughs:
I like your choice for lower control arms. I don't suggest using the uppers you've chosen. Stiffer bushings in the upper control arms typically just lead to rear end bind. If you want more than that out of the suspension I'd look into a torque arm/panhard bar combo. Typically 31 spline axles are used for most street cars. 33's I'd say are used more on a dedicated drag car for extra strength. The axle splines must match your diff or posi spline count.
Ditto... [Big Grin]
 
Posted by 9Roush8 (Member # 2472) on :
 
I know the car has 28 in it right now but it has a detroit tru trak in it and a different girdle does that change anything? not reall familiar with this... what panhad bar?
 
Posted by 9Roush8 (Member # 2472) on :
 
what uppers would you suggest?
 
Posted by 9Roush8 (Member # 2472) on :
 
ttt
 
Posted by Glenn (Member # 520) on :
 
have you welded your torque boxes yet?
 
Posted by 9Roush8 (Member # 2472) on :
 
no not yet... im going to do that after i put it back together, then im doing my torque arms and panhard bar as well thanks... that should be a good combo with some 275/40/17 nitto dr's??
 
Posted by HungryHippo (Member # 537) on :
 
just keep the stock uppers or get the fms. you dont want the uppers to bind or it will oversteer like crazy
 
Posted by 9Roush8 (Member # 2472) on :
 
i'll just get the lowers for now, so which uppers??? stock ones? what makes it bind?
 
Posted by Quick 88LX (Member # 1950) on :
 
Get the MM uppers since you have the lowers. The different spline # is the amount of torque they can handle. In selecting the right axle, you buy the necessary spline count that would support ALL of your RWTQ in ONE AXLE. That way both axles should NEVER fail (theoretically). Unless you have 750hp the 31 spline axles will suffice. Aftermarket 28 splines are good until around 500rwhp so I wouldn't sweat it.

In a 4-link suspension design, the control arms do not only pivot, they also move sideways in an angular motion. If that angular motion is restricted because of a poor bushing design, the suspension will bind. That binding causes unpredictable performance – not to mention damage to the torque boxes.
 
Posted by Quick 88LX (Member # 1950) on :
 
Get the MM UPPERS dammit! [Big Grin]
 
Posted by 9Roush8 (Member # 2472) on :
 
lol, okay... i have taken the whole thing apart, and no damage whatsoever besides the drivers side upper control arm broke where the bushing is. Definitely got lucky and there is no damage underneath. im changing them regardless along with torque arm and panhad bar.
 
Posted by HungryHippo (Member # 537) on :
 
if you get a torque arm and panhard bar, you dont need upper control arms or quad shocks
 
Posted by 9Roush8 (Member # 2472) on :
 
well that is awesome to know saves me money not buying those.. my driver side quad shock got messed up anyways... thanks a bunch, which panhard bar, and torque arm would you recommend??
 
Posted by HungryHippo (Member # 537) on :
 
get all MM (torque arm, panhard, and lower control arms) [worship]
my car is soooo fun in the twisties [Big Grin]
 
Posted by 9Roush8 (Member # 2472) on :
 
could you tell a difference after installation as far as the tires hooking?? thanks was it very hard to install?
 
Posted by HungryHippo (Member # 537) on :
 
yeah, traction from a stop is a little better. my tires are bald so i'll really know later. also you can accelerate hard out of turns
 




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