What lift height do you need to change UCAs?

Right on, thanks. Definitely going to do the UCAs, I do a lot of highway miles so I think it'll help a lot.

 

OK so assuming you do a 2.5 or 2.25" leveling kit, what is the basic UCA brand or source recommended? Keeping in mind average Joe that is not going off-roading all the time - ie: bang for the buck w/out compromising long term quality?

 

Light Racing is good for alignment purposes.

Camburg, All Pro, or Total Chaos for uniball. I went with AP, happy with 'em. Really solid customer service, as well.

 

Ok dumb question, i am the 6 inch lift guy and am wondering how the other lifts even achieve lift. Do they just push the truck up by longer shocks thus giving lift. because on a 6 inch lift you drop the LCA 6" with a bracket and use a longer knuckle and attach the lower and upper control arms and there is your lift with all the geometry staying the same. the other ones seem to me to keep the lower control arms in the same spot and just putting the CV axles and everything else on a non factory angle. will someone explain it to me, and tell me how high you can go with these kind of lifts. thanks in advance.

 

http://www.tacomahq.com/66/tacoma-leveling-lift-kit/

Basically:
a) Longer spring, same spring rate as stock, in place of stock spring, will in essence result in increased preload on the spring, thus making the truck taller--assuming load is constant.
b) Same length spring, higher spring rate, truck is taller.
c) Spacer on top of coil, below top of strut, increases spring preload, truck is taller.
d) Spacer on top of strut, just shifts all components away from the truck, spring rate and ride is the same, truck is taller.

Result of this is: non-stock CV angle, "ideal" is 1-1.5" lift, and diff drop, best use of the suspension's travel in both directions, and CV angle stays the same. Above this, CV angle takes a hit, boots go bye-bye from time to time.

Most lift without going LT: 3", requires uniball UCAs, diff drop, and may result in vibes. Above 3" and the suspension is nearly fully extended, stock UCA will bind, little to no suspension droop, all the compression, harsh ride.

Most lift with IFS: +3.5" LT, truck gets 7" wider, up to 4" lift height. But really, the ideal setup with IFS is simply 0-1", that gets you the MOST droop and compression.

Reasonable lift: 2-2.5", should have diff drop, and UCA recommended.

Best: SAS.

 

that clears it all up thank you

 

@McRoy i have a 2015 double cab 4x4 and i have a 6" lift stacked on top of a 3" lift with stock UCAs. i live in south louisiana and romping around in the swamps and mud holes is what my truck sees just about every weekend....i drive 150 miles a day round trip to and from work during the week. my truck has 26000 miles on it and ive had zero issues.