do the 5th gen ucas have any more length then the 4th gen ones? I have a 3 inch dobinson lift on mine and have the stock ucas. Im wondering if the 5th gen ones will improve anything.
5th gen UCA are the same, running 20k mile 2017 on my 2004. 275/70R17 bfg's rubbed UCA with stock 4th gen wheels, went to TRD Pro 5th gen's and have same clearance with 4th or 5th UCA's. Depending on tire size you want either get wheels with different backspacing or get some $$$ UCA's.
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Eibach pro truck with WOR springs on 1st notch in front. 5100's in rear w/ FJ OEM takeoff coils. 255/70R18 on 18" Limited wheels. 1.5" spacers on rear(one trimmed a bit to correct lean). Gibson catback, 06+Headlamps, auxito 16K bulbs in high, low, and fogs!