Quote:
Originally Posted by YotaDan
The need for aftermarket UCAs comes into play when you start getting into the 2.25"+ of front lift height. The Caster in the alignment starts getting on the low side. The Aftermarket UCAs will fix this issue. If going with that much lift and making the decision on going with an new UCA, Icon is offering the extended travel Coilovers to take advantage of the extra range of travel the new UCA has to offer.
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Update: YotaDan is right on. Just got my Light Racing UCA's on this week and have the following updates:
1. The stock UCA's were really worn out after supporting the ~2.5" lifted front for awhile.
2. It wasn't until today, after getting my alignment done, that I truly appreciated the importance of the after-market UCA's. 4 degrees of castor dialed in accurately compared to a rough time getting 2 degrees with the stock UCA's before. This increase in castor, for me, was the difference between rubbing and not rubbing my Duratrac 285/70r17's against the body. (I had already had the body mounts chopped, but still had rubbing at certain angles going up a hill, such as turning into my driveway.)
BTW, the 1" increase in droop common with after-market coilovers for the 4th gen 4runner is in addition to the lift, so it's not all about the droop. Just sayin'.
Snowy