06hoss

Yeah +1 on that CrazyAL...it wasn't very clear...he didn't state if he was running adjustable uppers or all stock control arms. I supposed you could run a one piece driveshaft with out adjusting the pinion angle to bring it within range, but you do so at your own peril. As you said, you can make that adjustment using either set of control arms, it's just easier to access the lowers plus the stock lowers have been known to flex while the uppers probably don't (as much) since they are shorter.

swensicle

Has anyone dynoed before and after a driveshaft swap? If so, what was the diff?

modular81

Great info Crazy Al just one question though, are relocation brackets needed with adj. lca's as well or are they only needed for a fixed lca.

fin1

I was only talking about an aftermarket DS in relation to the LCAs, not the entire suspension. Yes, the pinion angle can be alter with an adjustable UCA to correct any pinion change that the DS may cause. My point (though poorly stated) is if the angle is off only an adjustable UCA is needed to correct it. Adjustable LCAs are not needed to correct the pinion angle. Sorry for the confusion.

CrazyAl

Relocation brackets are for adjusting instant center. That is a totally seperate variable from pinion angle. In other words, the two have nothing to do with each other. If you change your driveshaft, you do NOT need the relocation brackets.

You might want to read this thread, which discusses these parts in some more detail: https://mustangforums.com/m_2230421/tm.htm


Ah, I understand now. You're right that an adjustable UCA would be a suitable solution.

As I said above, if you get the 1-pc driveshaft then you need EITHER an adustable upper or adjustable lowers.

Personally I recommend a solid UCA and adjustable Lowers. That is becasue the lowers are easier to adjust than the upper--there's a lot more room for your tools. Also, the adjustable LCA + Solid upper is a stronger setup than the solid LCA + adjustable upper.