Rear Tower brace?

88Stangboy · Jan 3, 2006

Anyone ever used a Rear strut tower brace? I was thinking of making my own
out of some steel i have laying around and i was wondering if anyone has any input on how much flex they take out of the chassis...is it even worth the effort if i have a 10 pnt. cage already?

jadedinpa · Jan 3, 2006

if you have a 10-point cage, don't bother.

88Stangboy · Jan 3, 2006

I was thinking that...i was just going to fabricate an 'X' type brace between the two towers in my trunk. But i probably wont bother now...anyone know about the solid engine mounts? Its a street driven car, about 3 times a week on average.

iwashmycar · Jan 3, 2006

well, would it help to put in a rear shock brace in a car that doesnt even have subframes like my own??

-adam

TrophyHead · Jan 3, 2006

iwashmycar said:
well, would it help to put in a rear shock brace in a car that doesnt even have subframes like my own??

-adam

No.....there a waste of money. I forgot the reasoning.....something to do with not moving lateral?????

Subframe connectors are the ****nit though. Highly recommended. I'm sure you know that though.

TomCat · Jan 3, 2006

88Stangboy said:
I was thinking that...i was just going to fabricate an 'X' type brace between the two towers in my trunk. But i probably wont bother now...anyone know about the solid engine mounts? Its a street driven car, about 3 times a week on average.

I have solids in mine... some people were saying that they'd stress the chassis over time if you do a lot of hard launches and stuff. Be warned though, they do increase the feelable vibrations... mine gets pretty shaky at times.

88Stangboy · Jan 3, 2006

My car shakes plenty anyhow, i was wondering because my engine mounts i have are pretty much shot and i was going to have to replace them and i was thinking of solids, eventually my car will be only a weekend car. So vibrations not really a concern...how bad though?

wazazzle · Jan 3, 2006

Next time I do a rebuild, I'm going with solid motor and poly trans.

jadedinpa · Jan 4, 2006

solid motor mounts aren't bad at all. do it.

TrunkFunk · Jan 4, 2006

Every bit helps.
Subframes only tie the front frame to the rear. They tighten things up a bit, but they also leave plenty of lateral twist.

I had a set of subframes in a notch that actually made the rear seat framing squeek under accelerating load.

Ever seen a truck frame. They tie the rails together along the whole length of the frame. You don't see that kind of reinforcement in a fox stang ... not anywhere along the shotty (at best) split subframing.

_jb_ · Jan 4, 2006

I don't think it would hurt.

88Stangboy · Jan 5, 2006

well its going to weigh about 10 pnds if i make it out of 1 inch square tubing, so im wondering if its worth the weight addition. Remember i already have a 10 point roll cage in the car. So will it even matter if its in there or not?

5.0fox · Jan 5, 2006

dont waste the time and effort to build it. the rear towers arent as critical as the fronts.

Sicarius428 · Jan 5, 2006

If you already have a cage, I doubt it will help very much.
Kevin

Mustang5L5 · Jan 5, 2006

TrophyHead said:
No.....there a waste of money. I forgot the reasoning.....something to do with not moving lateral?????

The rear shocks have no involvement with rear end geometry at all. You can tie them into a 20 point roll cage and it won't really make a difference.

Instead of fabbing up a rear shock brace, you should invest that time into reinforcing the torque boxes.

TrunkFunk · Jan 5, 2006

The shock towers are just a point to tie the two sides of our unibody cars together at the rear.
The braces are not intended for shock travel distortion.

larrendeuce · Jan 5, 2006

"One of the biggest problems facing the Mustang is the flexing of the rear shock towers. This effect becomes particularly acute when the car is equipped with a coil-over conversion kit. A simple section of tubing welding between the two towers can eliminate this problem. ....the brace can also be welded to the roll bar to provide additional rigidity." - Mustang Performance Handbook 2, William R. Mathis

Mustang5L5 · Jan 5, 2006

larrendeuce said:
"One of the biggest problems facing the Mustang is the flexing of the rear shock towers. This effect becomes particularly acute when the car is equipped with a coil-over conversion kit. A simple section of tubing welding between the two towers can eliminate this problem. ....the brace can also be welded to the roll bar to provide additional rigidity." - Mustang Performance Handbook 2, William R. Mathis

Well coil-overs are an entirely different animal. Now you are putting heavy loads on something that wasn't designed to take it. You SHOULD brace the rear shock towers with coil overs.

Rear Tower brace?

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