I should be expecting my Pro Rock ultimate 44 built with RCV axles, ARB locker and the Pro steer rebuildable ball joints any day now! I have been looking to complete the build with a rear 60 but are wondering your thoughts between the Dynatrac and the RockJock? I'm sure I can't go wrong with either... I like the RockJock because of ground clearance and skid plate that is attached. This might sound stupid of me but what is the benefit of the ductile iron housing? Is it stronger then Dynatrac because of this? Does one mount better then the other or maybe have problems that I can't find here on the forums? My goal for my jeep has been to build the most reliable rig I possibly can so when out on the trail I have a lesser chance of breaking. I know it can still happen by all means.. Any input on what rear Dana 60 to buy is very appreciated.

 

If (BIG IF!) I had the budget, my top choice for a reared would be a standard rotation Dynatrac Pro 60 full float rear axle!!! I base this off the greater strength of a standard rotation diff in a reared application (not running on the coast side of the gears), the strength/durability/easy field fix advantages of a full floater (tubes are carrying the weight, axle shaft is merely transferring the power. A big consideration to me especially on a heavy pig JK like mine is!), and the fact that I personally am not fond of the Rock Jock's looks! (yeah, the last one is petty, I know!!!) I realize the Pro 60 has less ground clearance that a Pro Rock 60 or a Rock Jock but, the strength of the standard rotation is worth it, IMHO! (Bear in mind, this is coming from the perspective of a person that ran an unshaved 14BFF rear in his last trail rig though, LOL! (gotta love a 14bff though, nice big ring and pinion, straddle mounted pinion (so no deflection under load) and full floating!!!) Also, this is coming from a person with no experience with either (Currie or Dynatrac) axle so, take what I say with a grain of salt! (or shaker full, LOL!!!)

The Dynatrac's housings are listed as being made of Nodular iron. My understanding is that Nodular vs Ductile are two different terms for the same thing? The terms refer to iron in which the shape of the iron molecules is spherical and thus the iron possesses greater elasticity and less likelihood of cracking. (please correct me if I am wrong!)

 

Dude you completely sold me when you reminded me that they are free floating! My buddy told me a long time ago about this and all I needed was you to say it to me again. I would also give up an inch of clearance for a free floating axle. Thanks so much again! If anyone else feels the same or possibly different about this let me know! Or if you have a RockJock and love it I'd like to hear it also. I Think Dynatrac is a sponsor on this forum so maybe they could chime in on this subject also? Thanks again for any help on your experiences.

 

Full floating is an option, standard package is semi-floating for Dynatrac. Check out their site, it's well set up! I have heard rumor of a full floating option on the Rock Jocks but, I have yet to see one, anybody got one? I don't see it listed on their site either.

 

Don't forget Teraflex has 60's now. I'm not sure of all of there options though.

 

Yes I see that they have full floating as an option but can not find a definite price for the upgrade yet. I'll continue to look and see what I can find on the price and continue to look at other manufactures as well before I make my final decision.

 

Currie was about 5800 for full float, dynatrac was around 7000. Currie has absolutely horrible customer service and i believe the center sections are made in china.

 

After the problems I've had with Curries tierod and draglink I wouldn't think of touching one of their axles. I'd go Dynatrac all the way.

sent from my Gtab

 

The differences between our assemblies is significant and this is why you'll usually find us priced higher.

First and foremost is that all of our specialty products (housings, end forgings, coil buckets, axle shafts and more) are all made in the USA. We don't source overseas and it shows in the quality of our castings. Our nodular iron pumpkin castings are very heavy with additional ribbing and webbing. We understand the abuse these housings take off road and build them to last. Our overall design also adds to the strength. By having the cover in the back and massive webbing up front, we are able to maintain gear mesh in the toughest situations. If we raised the opening, the natural pressures exerted by the tubes in heavy off road use would be focused at the opening. The webbing required to reinforce the opening must be opposite that opening. We would have 2 choices how to address that weakness (without adding a large truss), add additional webbing to reinforce the area (which would significantly impact ground clearance) or build a less durable product. Obviously, we chose to build a unit with maximum housing strength.

You'll find the ProRock60 (which is a patented design) to be very sleek and with the best possible ground clearance. Ground clearance isn't just important at the lowest point. You'll find that in some areas we have 2" of additional ground clearance. We also press fit and rossette weld our axle tubes. We won't use bolts to attach the tubes. Additionally, you'll find our tubes to be larger and thicker walled than competing products.

Our oiling system is also a key feature. Our pinion bearings are always in oil so you'll never have a dry start. Our brackets are much heavier than stock and what you'll see from some competing systems. We also finish paint everything for a high quality appearance.

Our 1 year warranty is an important part of the equation. This isn't just for workmanship or defects, this covers axle shafts, u-joints and whatever. If it breaks, we're going to cover it (Sorry but we must exclude traffic accidents).

We offer options not available anywhere else. You can find cheaper axles, but you won't find a better axle.

 

Thanks so much for replying quickly Dynatrac! I can't wait to install my front Dynatrac axles and now also look forward to installing my rear Dynatrac axle as well! I appreciate your feedback and the knowledge you shared comparing the two axles. I hope the install on both front and rear go smoothly and will give everyone an update on the forums once installed.