IMO, for 37's I would go Dynatrac PR60's. Best ground clearance in the industry...
Long time argument between companies. Dynas are fine axles if not the best hands down. I am with Currie that they have the highest clearance, measured to the lowest point. Somebody ought to have done the comparison somewhere.
Dynatrac says
Most ground clearance of any housing that uses an 8.5” diameter or larger ring gear
Currie says
The RockJock® III high pinion frontend assembly for the 2007 and up Jeep JK includes the complete housing featuring the 65-45-12 ductile iron housing center (highest ground clearance 60 on the market), AR400 heat treated bottom skid plate allowing the axle to slide over rocks easily, 3" d.o.m. x .3125" wall steel tubes, 1 ton inner knuckles, 5/16" thick heavy steel diff cover, yoke (1310/1330/1350 optional), and all new heavy duty Currie Jeep JK suspension brackets mounted. Upper control arm brackets are equipped with Johnny Joint® rod ends for maximum articulation. Axles shafts are the Currie performance 4340 35 spline inner and outer with Spicer 1480 u-joints. Outer assemblies include 1 ton outer knuckles featuring Currie "high steer" steering arm and ball joints installed, Currie exclusive 1 ton unit bearings with 5 on 5 1/2" wheel bolt pattern, 1/2" thread wheel studs and JK tone rings installed allowing for ABS and ESP retention, 13" vented rotors (over 1" greater diameter than stock for increased braking), zinc plated caliper brackets that allow the use of the stock JK front calipers, Currie drive flanges or premium manual locking hubs, and our heavy duty 1 3/8" o.d. 4130 chrome moly tie rod with tie rod ends.
http://www.currieenterprises.com/JK-RJIIIFSent from my Pixel XL using Tapatalk