What is a quick change rear end? // Winters Quick Change Tech

[@kennethwalker4551]

I got to give this man respect, he got me understanding a QC in under 51 seconds. I've changed more than a few gears in our outlaw sprint car and now I know why they let me have all the fun jobs replacing header gaskets and dropping oi pans and I didn't even get anything but a pit pass for pay.

[@Carlitosway211]

I think I found the rearend for my build! These things are beautiful!

[@GarlandHogan]

At one time they were used to drive to the drag races on the hi-way, then race, by reversing the spur gears.

[@NeedsLessWedge]

A winters quick change is what Cup should go back too instead of their current transaxle. These things were so easy to drain and use the combo chart to make any ratio we could dream of.

[@therealBocaStudios]

They want costs to go up to make the sport less attractive

[@therealBocaStudios]

Are these the same gears used in late model stocks?

[@wintersperformanceproducts]

The rear shown is a smaller V8-size rear, which uses 6-spline gears. The Late Models run our bigger 10-inch rears with 10-spline gears.

[@Blackcloud_Garage]

Can you run the pinion over the top for added ground clearance in a Jeep off road?

[@unleavenedkaraiteplus3412]

The reason is at the bottom is for lubrication.

[@darrenblamo9634]

How does a posi work in a quick change?

[@jimmybritt9537]

Very nice demonstration 👍👍🇺🇸

[@Just1Spark]

Thank you!

[@nando11220]

Does this give any advantage in power or what? Like, why was this part invented?

[@longsleevethong1457]

Is a 1:1 ratio achievable?

[@wintersperformanceproducts]

Absolutely-our #1 gear set (for both 6- and 10-spline) is a 1:1 ratio. If you visit winters performance.com and click on "Gear Charts" you can view a PDF with all available ratios.

[@longsleevethong1457]

@@wintersperformanceproducts thanks for responding! I’m going to use a fwd ls4….mount it mid engine turn it long ways remove one cv axle and connect the other side to a winters differential.

[@longsleevethong1457]

Excellent video

[@dennisschell5543]

How much power and weight can it handle on slicks? 🤔

[@wintersperformanceproducts]

The rule of thumb is: • V8 size (8-3/8" ring & pinion), the rear shown in this video, is rated to 600hp • Champ (10" r&p) is rated to 1,000hp • Champ HD (or a Champ equipped with some of the available heavy duty options, like a heavy duty lower shaft) is rated for over 1,000hp But as you said things like slicks, trans brakes, how much the car weighs, etc. all play a role. If you're running a '32 Ford with 550hp, a T5 and pie crust slicks, a V8 rear will likely be just fine. If you're running a '68 Camaro big tire car with 550hp and a trans brake, you're going to want a Champ or Champ HD rear even though you're under 600hp. Every rear is built to order. If you've got a specific application in mind, give us a call or shoot us an email and we can get all your details and build you a rear that will live.