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Promo: HAPPY    Expires: 7/12/20
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$2,123.99
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend

DMI XR3 4.12 Rearend

Rear Position, Single Shaft Axle Type, Differential Included, 4.12:1 Gear Ratio

0 Reviews | 1 Answered Question
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DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
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DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
DMI XR3 4.12 Rearend
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Part # 9403305
$2,123.99
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Details

Position:
Rear
Axle Type:
Single Shaft
Differential Included:
Yes
Gear Ratio:
4.12:1
Ring Gear Size:
8 Inch
Finish:
Hi-Temp Black
Axle Splines:
42
Housing Material:
Magnesium
Weight:
78 lbs.
Sold in Quantity:
Kit
MFG. Part #:
Select Drive to see
Notes:
Weight give is standard configuration.

Info

The DMI design team used the latest computer F.E.A technology to develop and engineer the new XR3 rear end. The XR-3 utilizes an 8" 4.12 ring and pinion that saves more than 2.5 lbs over a conventional 10" gear. The rear is a direct replacement utilizing standard 10 spline gears commonly used in full size rears along with conventional length driveline components. The rear offers an additional 2" of fuel cell clearance and 1.75" of seat clearance. The ring and pinion has been used successfully in applications up to 800 horsepower on both dirt and pavement. This is an excellent choice for the RaceSaver 305 or 360 sprint car racer.

  • Choose between internal coupler (Int) and swivel ball spline coupler (SS)
  • 4.12 ring and pinion
  • Heat Treated Steel Lower Shaft
  • O-Ringed Rear Cover
  • Jack Pad
  • Increased Oil Reservoir
  • Temperature Reducing Cooling Fins
  • Billet Aluminum Front Bearing
  • Housing
  • Breather Assembly
  • Non Twist One Bolt Shifter Mount
  • 3 quarts BullDog Blood Oil
  • Sold each

Specs

Important Driveline Lengths when using XR-3 with a 40" Engine Setback

  • Internal 10-10 Driveshaft – 29” w/ U-Joint Spring
  • DMI Style Swivel Coupler Driveshaft – 26.5” w/ U-Joint Spring
  • Winters Style Swivel Coupler Driveshaft – 27.5” w/o a U-Joint Spring
  • Torque Tube – 27"
Some parts are not legal for use in California or other states with similar laws/regulations

More Like This

Reviews

Q & A

Videos & Articles
  • In this Tech Tip, John responds to a customer looking to upgrade the 8” stock differential in his Cougar to a 9” open diff.
  • A routine weekly maintenance checklist to perform between each race in order to keep a clean and efficient race car at the track.
  • Dalton discusses a few great safety features that we offer for our customers here at Speedway Motors . We have what you need to remain safe in your race car.

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