Drivetrain G Force sub frame connectors

limp · Oct 5, 2023

I tried a search on here and found nothing about these..
Has anyone used or been around the G Force sub frame connectors sold by Southside Machine??
Are these relatively new or have they been around for a while?

1979-2004 Mustang Subframe Connectors | SSM-1402-BLK

These tubular sub-frame connectors were designed to tie the front and back frames together using the supplied bolt-on hardware.

www.crossmembers.com

General karthief · Oct 5, 2023

#1 I don't see any seat frame connectors
#2 very few use bolt in style
Although they look good and could likely be welded.
Didn't compare wall thickness.

limp · Oct 6, 2023

General karthief said:
#1 I don't see any seat frame connectors
#2 very few use bolt in style
Although they look good and could likely be welded.
Didn't compare wall thickness.

If you watch the video the manufacturer comments that the seat is a separate problem and is purposely not attached?? I can't answer this one as I have never installed ( yet) sub frames on a fox body.???
Yes, its a bolt in, but a very unique way of bolting in this system.. Actually tying in the front K member with the bolt the rear control arm swivels on.
Again, just wondering what the people on her with the experience of these cars think of these or if any have used them??

AeroCoupe · Oct 6, 2023

They leave a lot to be desired with regards to twist and rigidity. This is all due to how they attach to the reward k-member mount and forward of where the rear LCA attaches.

I’m not a fan of the rear attachment point with a high hp car as the torque boxes on these cars are suspect anyhow. I guess if you weld up the torque box ( you should do this regardless) then on a DD it would be okay.

Maximum Motorsport’s full length and Global West’s full length attach to two points on the front subframe, have seat brackets, and then attach to the rear subframe in the bulkhead area. This and they are weld in which is a far superior connection compared to bolting in this application.

I say all of this with how I would build a car which translates to I want the chassis as stiff as I can get it. For a DD or Garage queen the bolt in is an improvement and will definitely help.

I ran across a couple threads on the 99 and up cars having them. Search “south side machine subframe connectors”.

limp · Oct 7, 2023

Looks like full length weld in MM connectors it will be then...

AeroCoupe · Oct 7, 2023

Better choice IMO. With them being welded in the car will have more torsional rigidity and they physically attach to the car at three points vs two with most.

I will say that if you want the car even more rigid install the Griggs Racing uppers as well. I have them in both my Foxes and the cars are freakishly stiff.

MFK 1000 U - Standard Upper Frame Kit- Internal ('79-'04)

“ Quick Facts This is the first step you should take to improve performance Allows your suspension to function properly Decreases frame twist under

www.griggsracing.com

I will also say that when people say subframe connectors made the car ride better it’s the absolute truth.

flynndawg · Oct 7, 2023

mine came from american muscle if i remember correctly, im not the best welder but they have done good for years...

limp · Oct 7, 2023

Installing connectors is a no brainer as my 83 is a convertible.... I didn't do this to my Dodge when I restored it and I regretted it... I wasn't going to mess up the perfect " underneath" of it later....

Mustang5L5 · Oct 9, 2023

Sn95 convertibles come with bolt on subframe connectors, and they are a much stuffer chassis than a fox due to improvements in Manufactuing methods, but even the SN guys say that taking the bolt-ons off and putting MM full lenght in made a huge difference.

nickyb · Oct 9, 2023

limp said:
Installing connectors is a no brainer as my 83 is a convertible.... I didn't do this to my Dodge when I restored it and I regretted it... I wasn't going to mess up the perfect " underneath" of it later....

Pretty sure your dodge was a full frame to begin with.
Glad your getting full length ones, that's the first thing I did back in 07 when I got my Stang.

limp · Oct 9, 2023

nickyb said:
Pretty sure your dodge was a full frame to begin with.

Jeesh I must have missed that when it was on the rotisserie for 8 years.....

General karthief · Oct 9, 2023

nickyb said:
Pretty sure your dodge was a full frame to begin with.
Glad your getting full length ones, that's the first thing I did back in 07 when I got my Stang.

Sorry, no. They are unitbody cars too.

nickyb · Oct 9, 2023

General karthief said:
Sorry, no. They are unitbody cars too.

No , shows what I know about mopars

limp · Oct 9, 2023

nickyb said:
No , shows what I know about mopars

When I was in the Mopar club, it was a big joke whenever someone advertised a " frame Off " restoration mopar for sale.... We knew it was probably a chevy person " flipper".....

Mustang5L5 · Oct 10, 2023

I still heard "frame off" when it comes to restoring Fox bodies

2000xp8 · Oct 18, 2023

I didn't know southside was still around. Their control arms are probably responsible for more torque box damage than any other company in existence.

And at $350, it would appear you get something worse for $150 more.

hollywoodstang8 · Nov 17, 2024

I just put these on mine last week. My car is (for now) a stock 92 5.0. I installed these subframe connectors in my driveway with basic tools (electric impact and some socket). Even though the directions suggested there might be some convertible reinforcements that would need cut, I did not have to cut anything. Had to widen a bolt hole on both sides at the rear but otherwise were completely bolt in. This car is far stiffer than it was before. I had weld-in subframe connectors on my coupe, and this car feels every bit as stiff as that was. As far as racing goes, I'm not the guy to ask. But for not having to weld or cut and tooling around the streets, these work great and are probably the first thing you should do when getting a converible.

Drivetrain G Force sub frame connectors

limp

wrap a little cheese around it and its a done

1979-2004 Mustang Subframe Connectors | SSM-1402-BLK

General karthief

wonder how much it would cost to ship you a pair

limp

wrap a little cheese around it and its a done

AeroCoupe

lube between the nut and the face. I know my lubes

limp

wrap a little cheese around it and its a done

AeroCoupe

lube between the nut and the face. I know my lubes

MFK 1000 U - Standard Upper Frame Kit- Internal ('79-'04)

flynndawg

Member

Attachments

limp

wrap a little cheese around it and its a done

Mustang5L5

That is…until I whipped out my Bissell

nickyb

I gotta say i never painted my nuts, Never Ever

limp

wrap a little cheese around it and its a done

General karthief

wonder how much it would cost to ship you a pair

nickyb

I gotta say i never painted my nuts, Never Ever

limp

wrap a little cheese around it and its a done

Mustang5L5

That is…until I whipped out my Bissell

2000xp8

hollywoodstang8

New Member

Similar threads

Drivetrain G Force sub frame connectors

wrap a little cheese around it and its a done

wonder how much it would cost to ship you a pair

wrap a little cheese around it and its a done

lube between the nut and the face. I know my lubes

wrap a little cheese around it and its a done

lube between the nut and the face. I know my lubes

Member

Attachments

wrap a little cheese around it and its a done

That is…until I whipped out my Bissell

I gotta say i never painted my nuts, Never Ever

wrap a little cheese around it and its a done

wonder how much it would cost to ship you a pair

I gotta say i never painted my nuts, Never Ever

wrap a little cheese around it and its a done

That is…until I whipped out my Bissell

New Member

Similar threads

Privacy & Transparency

Privacy & Transparency