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Old 07-16-2013, 11:37 PM   #1
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Ordering suspension parts, need advice

Can't find stock upper control arms so I'm going to order tubular upper and lower rear control arms , and I was also going to order some full length subframe connectors.

Would I notice a difference with this setup?
I was going to try to get the subframe a welded , I will be doing the arms at home.
Thanks
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Old 07-17-2013, 04:53 AM   #2
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Don't do the rear uppers it will only cause problems. They are fine stock.
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Old 07-17-2013, 05:32 AM   #3
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Quote:
Originally Posted by WheelStander View Post
Don't do the rear uppers it will only cause problems. They are fine stock.
How ?
My stock one bushings are gone .. It's horrible , can't find bushings.. The cheapest set I've found is like 200.00
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Old 07-17-2013, 05:37 AM   #4
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Quote:
Originally Posted by WheelStander View Post
Don't do the rear uppers it will only cause problems. They are fine stock.
I found this. Should I get it ? I can install myself ..

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Old 07-17-2013, 07:00 AM   #5
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Good call. I'm going to do those too although I don't know anyone who has used that product.
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Old 07-17-2013, 12:44 PM   #6
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What kind of problems might you see if you install upper control arms? I was thinking of putting in both upper, and lower.
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Old 07-17-2013, 02:25 PM   #7
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Some binding and such... Not recommended for street car. Someone can explain I'm on my phone.

It ain't gonna help ya anyway.
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Old 07-17-2013, 08:19 PM   #8
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The upper control arms are for locating the rear end laterally and actually interfere (bind) in the stock suspension arrangement. The stock rubber bushings have enough compliance to allow the suspension to move and still do an OK job of locating the axle laterally. If you install upper control arms with stiffer bushings, they will cause the suspension to bind, which can cause unpredicatable handing and reduce the travel and use of the suspension. Look at the upper control arms on the MM website and you'll see the use the same rubber as the 1994-04 mustang and say there is no performance benefit to those cars using their arms. If you can get rid of one or both upper control arms, you'll be in a much better place. You can remove one arm when you add a pan hard bar and get rid of both with a torque arm. Again, the best solution is to remove the upper control arms because they naturally induce bind as the suspension moves. What I said above is for someone who actually cares about going around a corner. If you are only concerned with going down the quarter mile, then I guess the typical thing to do is install upper control arms with stiff bushing (bind inducing) and weld the torque boxes so you don't rip them off when the suspension binds.

( thanks stangnet)
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Old 07-17-2013, 09:07 PM   #9
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Brilliant, thanks for that info RM and SN
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Old 07-17-2013, 10:48 PM   #10
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So are lower rear control arms worth it? And what kind?
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Old 07-18-2013, 02:39 AM   #11
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What's the difference between solid & adjustable control arms ?
What's better
Idk if ill know how to adjust them too lol
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Old 07-18-2013, 10:31 AM   #12
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upper rear control arms are known for bind, most recommend heavy duty ford racing or leave them stock. Going with good spherical bushing lower control arms is a good way to go (delrin instead of poly bushings as well if you can)
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