RockSolid Performance - Custom fabrication & axle assemblies for Off-Road and Street/Strip

Follow RockSolid Performance
on Facebook

Project Builds Gallery

"Boring to Badass" 3-Day Jeep JK build

Tube Chassis Mud Truck in-the-works

Hemi SRT JK v2.0 on "True-1-Tons", 42" MTRs

BJ's XJ with 1-tons & 4-wheel Steering

"Brush Buster II" Jeep buggy

RockSolid Performance Comp Buggy

Hemi SRT JK v1.0 on "True-1-Ton" axles

'98 Jeep XJ with 1-ton Axles

Jeep YJ "Brush Buster"

YJ-based Buggy

Products and Services

Axles: Custom-Built
Axle Narrowing
Axle Regearing & Locker Set-Up
Axle Resplining
Drive Flanges
Hi-Steer Knuckles
LS-1 Engine Swaps
Redrilling Axle Bolt Patterns

We are a dealer for all your Yukon axle shafts, gears, lockers & U-joints.

Other Brands...

View RockSolid Performance items on eBay.

Off Road Parks

Calculators

Easy and simple—that’s how we want your rearend experience to be. Randy's Ring & Pinion has developed online calculators to help you with your installation and other configurations.

RPM & Tire Height Calculator
Gear Ratio Calculator
Engine Displacement Calculator
Cubic Inches to Liters (<->) Calculator
Rod Ratio Calculator
Horsepower Calculator

home_page.php Include featured_products_slider.php Include

Featured Products & Services

JK Steering Box Brace & Track Bar

Heavy Duty steering box brace for 2007-2011 Jeep JK is specifically designed to practically eliminate sector shaft play in the steering box, which is a contributory cause to wandering and inferior road feel. The brace also adds an additional fixture point for the steering box to the frame, reducing stress [...]
Axle Resplining & Redrilling

RockSolid Performance can cut and respline your stock axle shaft on-site. We also stock Yukon 4340 blanks for Dana 30, Dana 44, Dana 60, and Ford 9". We turn the axles in our lathe, then respline the axle. All work is done [...]
Machined F350 Unit Bearing on "True-1-Ton" Rear Axles

RockSolid Performance machines Ford F350 Unit Bearings for use on our "True-1-Ton axles. Enjoy a low-profile hub, long service life, ability to run a 35-spline full-float rear axle, and integrated tone rings to utilize your OEM Jeep JK ABS & traction control. [...]
RockSolid Performance Dana 60 Drive Flange Kits

Gain strength by replacing your existing Dana 60 lock-outs with a set of these RockSolid Performance Drive Flanges. Availble for either 30- or 35-spline outer shafts. [...]
Custom-Built Axle Assemblies

Rocksolid Performance specializes in custom-built axle assemblies, and a "True-1-Ton" bolt-in front axles for Jeep TJs and JKs [...]