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Motive Gear M4204F318 Loaded Posi-Trac Differential Carrier Case 31-Spline

(Ford Grand Marquis 1991-2004, F-150 1983-2014, Mustang 1979-2014, Ranger 1990-2013, Explorer 1991-2010, Expedition 1997-2005, F-250 1983-92 + 34 more models)

Manufacturer

Picture for manufacturer Motive Gear

Part Number

M4204F318
8 reviews
Sale Price

$289.21

4 left at this price

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Usually delivered within 2 days

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Product Details

The Motive Gear M4204F318 is a fully loaded Posi-Trac differential carrier case designed for Dana 35 rear axle applications. This unit comes pre-assembled with a limited-slip clutch pack, delivering improved traction by distributing torque to both rear wheels simultaneously — a critical upgrade for off-road and performance driving conditions.

Key Specifications:

  • Spline Count: 31-spline axle shaft compatibility
  • Carrier Bore Diameter: 1.18 in.
  • Ring Gear Ratio Coverage: 3.73 and up for CJ7, CJ8, ZJ, TJ, 2001 XJ, WJ; 4.10 and up for XJ, YJ
  • Type: Loaded carrier (clutch pack / Posi-Trac limited-slip internals included)
  • Axle Application: Dana 35 rear axle

Features & Benefits:

  • Loaded design means all internal components are pre-installed, simplifying installation
  • Posi-Trac limited-slip differential action improves traction on loose, slippery, or uneven terrain
  • Built to OEM dimensional tolerances for precise gear mesh and long service life
  • Compatible with standard Dana 35 ring-and-pinion gear sets from Motive Gear and other major manufacturers
  • Ideal for ring gear ratio changes during regear projects

The M4204F318 is a direct-fit solution for enthusiasts performing axle regears or rebuilds on Dana 35-equipped Jeep vehicles. The included Posi-Trac clutch pack eliminates the need for sourcing and assembling individual components separately.

Products specifications

Fits

Ford Grand Marquis 1991-2004, F-150 1983-2014, Mustang 1979-2014, Ranger 1990-2013, Explorer 1991-2010, Expedition 1997-2005, F-250 1983-92, Bronco 1983-96, Crown Victoria 1992-2011, Thunderbird 1987-94 + 31 more models

Aftermarket Carrier Style

Open differential

Axle Shaft Spline Quantity

31

Carrier Material

Steel

Cover Bolts

10

Manufacturer of Axle

Ford

Quantity

Sold individually.

Splined Bore Diameter

1.32

Type

Posi

Differential Case Design Type

Ford 8.8

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

Fast shipping, product was excellent .

SHOPPED THE PRICE EVERYWHERE. BEST DEAL ON THE WEB!

Very friendly customer service! They also shipped my radiator out very quickly. I will definetly be ordering from autoplicity again!

Amazing !! FAST SHIPPING and GREAT PRICES !! I couldn't ask for better !! I will definitely shop with Autoplicity again !!

I needed a few small XRP fittings for our NHRA Top Alcohol Dragster, I had called XRP and even a "pro racer discount" the price was ridiculous; couple this with their ridiculous shipping/handling charge I had to go elsewhere. I typed in the XRP part number into Google and found Autoplicity, twice as many pcs. as I was planning on ordering and with shipping it was cheaper than one fitting from XRP direct. I will be checking Autoplicity anytime I'm ordering something from this day on, everything about the transaction was smooth and simple. I just got my tracking number today and the stuff is on its' way. Thanks for making this transaction so easy and not robbing your customers on something as frivolous as "handling".<br><br>Respectfully,<br>Brandon Booher<br>NHRA TAD #34

Ordered Thursday, shipped Monday... guess all in all we can't be disappointed. At least they had them in stock.

fast

I build engines for Classic muscle cars and hot rods. Presently assembling chev. SB 383 cu/in. Went shopping for a Name Brand rotating assembly that was complete and ready to install.Shopped several other sites before finding "Autoplicity" Prices were GREAT (best I could find Anywhere), Shipping Very prompt, Shpg. charges Very reeasonable,I will Defenitely use them again!!!

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