Looking at sub-frame connectors...whats good?

[white97z28]

Damn 2" drop springs make it near to impossible to get at anything under the car...hopefuly the shop that car do the weld up also has a drive on lift. and if i buy bolt ons i can just set the front on tire ramps and put the rear end on jack stands and that would be like sitting on the ground right?

[meissen]

Curious about that as well.

[SLPSS]

YES mine was also put on with wheels on the ground ( drive on hoist )

[ThreeHonks]

I have UMI tubular bolt ins but they will be welded in as well this spring or whenever I can get it over to Stenod

[shiv15]

I'm buying Midwest Chassis sub frames for my vert. Weld in only. I even asked him if he made any bolt in and he said they were a waste of time lol. He is very reasonably priced too.

[Fbomb]

I'm pretty sure that being on ramps/jackstands should be the exact same as being on the ground so long as the weight of the car is balanced as it would be on the ground.

[sman]

Yup, can do it easily with front on ramps and back sitting on an old set of wheels/tires.

Of I can wait another month or 2 and use my neighbors drive on

[white96TA]

yep installing with all 4 wheels on the ground is a MUST.

please explain why, I never understood this

[Fbomb]

Relatively so it doesn't do this when you set it back down:

[sman]

Roflol! A picture is worth a thousand words. Id say that pretty much covers it!

[white96TA]

hmm mine does not look that way lol

but what I did was put them on loose with the car on its side then tightened it down when i let it down and had load on them, which i think is the best way...just imo

[white97z28]

Well im getting weld in boxed umi's and my uncle is like a master welder and he said he would weld them in. And we are going to put the front on ramps and the back on the stock wheels. So i think i figured it all out.

[JoeliusZ28]

hmm mine does not look that way lol

but what I did was put them on loose with the car on its side then tightened it down when i let it down and had load on them, which i think is the best way...just imo

you want your SFCs to support your chasis in the position it is in at rest. In other words, there should not be any tension/force on them when your car is just sitting there. Taking the weight off the suspension can completely reverse the force you are trying to combat with the SFCs, which can be enough to throw things out of alignment. Tension on the SFCs and chasis should be equivalent during flex, and supportive of each other. A misaligned install can create combative forces in the chasis, which you don't want.

[01badbird]

thats what I was told and same reason I went with 3 pts figured it would stronger tying together (side to side)

[white97z28]

you want your SFCs to support your chasis in the position it is in at rest. In other words, there should not be any tension/force on them when your car is just sitting there. Taking the weight off the suspension can completely reverse the force you are trying to combat with the SFCs, which can be enough to throw things out of alignment. Tension on the SFCs and chasis should be equivalent during flex, and supportive of each other. A misaligned install can create combative forces in the chasis, which you don't want.

Well said!