Dynatrac JK Serious Performance 44/60 Axle Set - 5.38, ARB
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Upgrade your 2007-2018 Jeep Wrangler JK with the Dynatrac JK Serious Performance 44/60 Axle Set — the ultimate answer for the weekend warrior who wants major strength gains without breaking the bank. You get an assembled ProRock 44 front and ProRock 60 semi-float rear, both retaining your factory bolt pattern and brakes so you can run 33- to 37-inch tires without buying new wheels.
Why Choose the Dynatrac ProRock 44/60 Axle Set?
- Keeps Your Wheels & Brakes – Retains factory bolt pattern and brakes, saving you $1,500 to $2,500 over an axle upgrade that forces new wheels.
- Built for 33"–37" Tires – Unquestionable strength and reliability across the most common JK tire sizes.
- ProRock 44 Front – Patented nodular-iron high-pinion centersection with best-in-class ground clearance — more than a factory Dana 30 — and control arm bushings installed.
- 3x Stronger Front Housing – 3" diameter x ½" wall tubing, three times stronger than any stock JK Dana 44 housing.
- ProRock 60 Rear – Patented nodular-iron high-pinion centersection with more ground clearance than a factory Dana 44 and a 2.75" raised driveshaft height to protect the driveshaft and U-joint from rock strikes.
- 2.5x Stronger Rear Housing – 3.125" diameter x 0.313" wall tubing, 2.5 times stronger than any stock JK Dana 44 rear housing.
- Forged U.S.-Made Shafts – Double-heat-treated 1350 4340 inner and outer front shafts with new U-joints, plus forged heat-treated 35-spline alloy-steel rear shafts.
- HD BallJoints Installed – Dynatrac HD BallJoints — the last balljoints you'll ever need.
- Confidence to Explore – Reliable, high-quality, 100% U.S.-made axle assemblies.
Kit Includes
- Assembled ProRock 44 high-pinion front axle with control arm bushings and HD BallJoints installed
- Assembled ProRock 60 semi-float high-pinion rear axle
- Forged 1350 4340 inner and outer front axleshafts with new U-joints
- Forged heat-treated 35-spline alloy-steel rear shafts
- Integrated raised track-bar and ram-assist steering mounting package
- Rock-proof nodular-iron Dynatrac diff covers, front and rear
Specifications
- Front: ProRock 44 nodular-iron high-pinion centersection; 3" x ½" wall tubing; ProRock 44 Unlimited housing geometry
- Rear: ProRock 60 nodular-iron high-pinion centersection, semi-float; 3.125" x 0.313" wall tubing; 35-spline shafts; 2.75" raised driveshaft height
- Rear oiling: Dual-Sump High Volume (DSHV) system to keep the outer pinion bearing lubricated
- End forgings: Precision-aligned alloy-steel, 100% made in USA
- Suspension brackets: CNC laser-cut, professionally welded and installed, including high-mount track-bar bracket for lifted JKs
- UPC: 883584143802
- Shipping dimensions: 34" W x 24" L x 84" D
- Shipping weight: 710 lb
Key Features at a Glance
- ProRock 44 Front + ProRock 60 Rear - Assembled and ready.
- Keeps Factory Wheels & Brakes - Saves $1,500–$2,500.
- 3x / 2.5x Stronger Housings - Front and rear.
- U.S.-Made Forged Shafts - 1350 front, 35-spline rear.
- HD BallJoints Installed - Buy once.
Fits These Models
Fits the 2007-2017 Jeep Wrangler (4WD) and the 2018 Jeep Wrangler JK (4WD). This is a JK-generation axle set — the 2018 fitment covers the JK holdover model, not the JL.
Notes
- Does NOT include knuckles or brakes.
- Axles shown in product photos feature the optional Dynatrac Big Brake Kit (DT JK44-2X1125-A), sold separately.
- Using the integrated ram-assist bracket on the ProRock 44 requires flipping the drag link.
- The ram-assist/steering stabilizer bracket for the ProRock 44 is not compatible with Reid Racing knuckles. If you're running Reid Racing knuckles, Dynatrac can substitute their first-generation raised track-bar bracket (no integrated ram-assist/steering stabilizer mount).
- CA Residents: Prop 65 Warning applies.
Questions? We're Here to Help.
Have questions about upgrades for your Wrangler? Contact FASS Motorsports and we'll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
Why Choose FASS Motorsports?
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