UCA question
- Thread starter Logan97
- Start date
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So do the lower control arms need replacing too or are they okay? No one has mentioned those.
Expedition Dave
Full Access Members
LCAs are fine. Also, UCA bear no heavy weight they are there for allignment through the suspension arc. The LCA supports the weight of the truck.
*I am no expert, and learning as much as I can about IFS and IRS as I can* NOTE THESE ARE ALL GEN4 Specs:
I believe the front suspensions "bump stops" are the strut's limitations.
And from my conversations with Bilstein Techs and ICON techs (no Ford techs) I have a "feeling" that the Gen4 zone is 1.6 inches max lift before your factory UCAs will hit the coil (Bilstein 5100s) on the droop and a max lift above that will require a new UCA (ICON 2.25 height coil overs but their shock linits too much downtravel).
Guys with 3 inches of lift and aftermarket UCAs may overstrees their front axles--but IDK about this at all--just specualtion.
If I had a garage and lift, it would be fairly easy to determine I think.
*I am no expert, and learning as much as I can about IFS and IRS as I can* NOTE THESE ARE ALL GEN4 Specs:
I believe the front suspensions "bump stops" are the strut's limitations.
And from my conversations with Bilstein Techs and ICON techs (no Ford techs) I have a "feeling" that the Gen4 zone is 1.6 inches max lift before your factory UCAs will hit the coil (Bilstein 5100s) on the droop and a max lift above that will require a new UCA (ICON 2.25 height coil overs but their shock linits too much downtravel).
Guys with 3 inches of lift and aftermarket UCAs may overstrees their front axles--but IDK about this at all--just specualtion.
If I had a garage and lift, it would be fairly easy to determine I think.
Last edited:
Frank Wilson
Full Access Members
The front drive shafts must experience increased "stress" with the 3/2 lift. Maybe just more resistance at the joints?
What about 3rd gens?
So I noticed at 2.5 inch spacers on the front, my aftermarket UCA’s would still rest on the coils when the front end was off the ground and suspension was at full droop. That being said, I haven’t heard any clunking on speed bump or with pot holes at all, and the thicker pipe construction on the UCA’s I installed seem to be less prone to hanging up in the coil.
