August 11, 2021 - 10:18 AM - Tech Question: I just installed your Yukon limited slip carrier and 3.42 ring and pinion in my GM 10 bolt. I’ve been breaking it in correctly. It’s been about 120 miles so far and it’s still hot to the touch. I can keep my hand on it for about a second or two. When will this thing start running cooler and when would you recommend my first oil change?...
The Soap Box Derby is an all-American pastime with a storied past that stretches back to 1934. Aspiring racers compete in local derbies to qualify for the big race in Akron, Ohio. The road that led to the Yukon car can be traced back to 2007 and RANDYS Worldwide salesman Tate Hudson was the flashpoint. “We have been a part of the Stanwood-Camano Soap Box Derby since 2007,” says...
The New Venture Gear 5600 series six-speed manual transmission is a great gearbox with a lot on its plate, namely the 5.9-liter Cummins inline six-cylinder turbo diesel. With all that torque to deal with there were a few teething problems in its early years. Some NV5600 units, produced from 1998 midway thru 2000, are known to have synchronizer problems and a weak input shaft. In...
Gear tooth patterns are harbingers… they can foretell whether your ring and pinion gear set is going to live a long and prosperous life or if it’s doomed to an impending catastrophic failure. Pulling off a proper differential setup comes down to precise adjustments. Parameters like pinion depth, backlash, pinion-bearing preload, and carrier-bearing preload allow you to fine tune the...
The u-joint plays a critical role in the drivetrain. They are one of those parts that are simple in their task and therefore often taken for granted. Whether in the front axle or on a driveshaft, the u-joint’s capabilities need to be understood. Doing The Job U-joints or universal joints join spinning components together while allowing them to move up and down in...
AX-15 – 5-Speed Manual Jeep Wrangler: 1988.5 - 1999 with 4.0-liter Inline 6 Factoids: Replaced weak Peugeot BA10 gearbox Related to Toyota Supra Turbo R154 manual Best 5-speed ever installed in a Wrangler Spotting Tips: All-aluminum case & mid-plate, generous ribbing Only mounts to a six-cylinder engine 10 spline input...
As with many automotive operations, the complexity of a task is not always representative of its importance. Take axle seal installation… a pretty straightforward affair but get it wrong and your diff is doomed. The seal will leak and ultimately lead to gear failure. To avoid this scenario, we have compiled 10 installation tips that will ensure you do the job right. There are many...
There are three main reasons to re-gear your ride. The first is to recapture the lost drivability and fuel efficiency of a daily driven vehicle that has been upgraded with larger wheels and tires. The second is to fine tune the performance characteristics of a vehicle that is a dedicated off-roader, tow rig, or drag racer where the focus is more on low-end grunt and acceleration. The third is...
Gear oil keeps components such as the ring and pinion gear set, spider and side gears, limited slip differentials, axles, bearings, and the like lubricated and running smooth. Friction modifiers are additives that improve the performance and efficiency of clutch style limited slip differentials. Understanding how these vital products work is key to properly maintaining your driveline so it...
Spools are all about getting full lockup on a budget… 100% lockup 100% of the time. There are two types of spools: full spools and mini spools. Each attains the same objective, ensuring both drive wheels on a given axle receive full torque and rotate at the same speed all the time. They create a solid axle. Read this article in Español The Spool Compromise As with...
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