Recently installed a 1350 u joint rear DS and have been running stock rear arms with 4” EVO Plush Rides. With the new drive shaft I needed to rotate my rear axle up to match pinion and DS angle.
I just installed some Synergy rear UCA’s and now it looks like I need less pinion angle. Catch is that I believe the arms are adjusted all the way in.
Does anyone have experience with these arms? Are they too long to use with stock lowers or is something wonky with my setup?
Pic is of the DS v pinion angle with the new arms. About 2* too high on pinion
IMG_1852.jpg
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Assuming you have the uppers set as short as they’ll go, consider getting either adjustable lower arms or synergy fixed arms, which are 1/2” longer than stock, cheaper than the adjustables, and should correct your issue. I have the adjustable uppers, fixed lowers, and 4.5” springs. All synergy. Can set the pinion properly with that set up.Originally Posted by RockinAZJK
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Last edited by fiend; 12-08-2019 at 11:52 PM.
I was hoping somebody would tell me I was just doing something weird so I wouldn’t have to buy more parts lol
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Ha ha ha ha ha ha ha ha , not have to buy more parts, that’s great!!
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Shorter uppers or longer lowers are the only way to fix your angle.
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Sorry.
Also, that driveshaft looks a bit short to my eye.
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Hey now! One can hope
As it would appear 🤦🏼*♂️
I sure hope it isn’t. Ordered it from Adams with dimensions and lift specs.
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Put it on stands, take the wheels off, and let the axle fully droop. If the shaft separates, you’ll know it’s too short.
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Sounds like a next weekend project AFTER I install the new arms I didn’t plan on buying 🤣Put it on stands, take the wheels off, and let the axle fully droop. If the shaft separates, you’ll know it’s too short.
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Not sure about the synergy arms but I'm running Currie uppers with stock lowers and it works out with my Adams DS but I am 1.5-2" lower than your lift so it's possible the height is just too much to have only adjustable uppers.
Side note when I ordered my Adams they mentioned how much blue should be showing (can't remember off the top of my head) but mine only have maybe 1" of blue showing at ride height. Might be worth giving them a call and asking about that. Assuming you are at ride height in that picture I agree it looks a bit short
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12' 2dr Gecko Sport 6 speed
PR44, ARBs, 4.88s, 35 spline rear, Adams 1350 Front & Rear, Rubi T-case, Rubi sway bar + Evo no limits, Evo armor & skids, 37/13.50" Cooper STT Pro, Evo 2" plush / OME med duty springs
***SOLD*** 08' JKU Rubicon 6-speed Stone White, 3.5" RK lift, 37" KM2s and lots more.
***CURRENT DD*** 16' F150
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