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SKU: 3990650

TeraFlex Dana 44 / Tera44 / Tera44 Rubicon: HD Differential Cover Kit

$128.99

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Warranty Information

Vendor warranty summary

TeraFlex Warranty

At a glance: Lifetime on suspension, steering and armor; 1 year on Falcon shocks and drivetrain; 90 days on finish

This is TeraFlex's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.

Coverage by product

Product or component Coverage
Suspension (coils, bump stops, control arms, track bars, sway bars/links, IR bushings) Lifetime
9550 shocks and stabilizer Lifetime
Steering and brakes (ball joints, tie rods, drag links, big brake kits, rotors, brake lines) Lifetime
Body armor (skids, racks, Alpha carrier, CB mounts) Lifetime
Wheels and adapters Lifetime
Delta Brake Kit 3 years
Falcon shocks (all series) 1 year
Axle assemblies, housings, knuckles, shafts, conversions 1 year
Alpine control arm and track bar bushings; driveshaft parts; transfer case kits 1 year
Recovery gear (straps, D-rings) 1 year
Paint and powder coat 90 days (defects only)
Wear items (brake pads, rotors) Not covered
  • Original purchaser only — coverage does not transfer if you sell it.
  • Keep your NVMOS order confirmation — proof of purchase is required.

What's covered

  • Defects in materials and workmanship
  • TeraFlex chooses to repair, replace or refund at no charge (except inbound shipping)
  • TeraFlex pays the freight to send the part back to you

What's not covered

  • Improper use, failure to follow instructions, or improper installation/maintenance
  • Modifications or unauthorized repair
  • Normal wear and tear, and finish beyond the 90-day term
  • Racing or competition use
  • Shipping/storage damage and other outside causes
  • Removal labor (customer's responsibility)

How to make a TeraFlex warranty claim

  • Call TeraFlex customer service, Mon-Fri 8am-5pm MST
  • Have proof of purchase or the original invoice ready
  • Remove the part and ship it in at your cost

TeraFlex contact: Phone: (801) 713-3314 · Claim page / support

Bought it from NVMOS? Start with us.

Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to TeraFlex, and help it along either way.

Shop TeraFlex at NVMOS

See all TeraFlex products, lead times and FAQs →

Disclaimer: The information on this page describes TeraFlex's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: TeraFlex official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.

About the brand

TeraFlex

TeraFlex has built Jeep suspension since 1996, works out of West Jordan, Utah, and now covers the Ford Bronco, Toyota Tacoma and Super Duty too. NVMOS carries TeraFlex lift kits, Falcon shocks, Alpine control arms, sway bars, ball joints, wheel adapters and Nomad and Olympus wheels. For Jeep and Bronco owners building for the trail.

Based in: West Jordan, Utah · Made in: USA (Utah) · Founded: 1996 (manufacturing) · Lead time: In-stock items ship in 24–48 hours

TeraFlex warranty: Lifetime on suspension, steering and armor; 1 year on Falcon shocks and drivetrain; 90 days on finish. Read the full summary

Warranty terms are set by TeraFlex, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.


TeraFlex Dana 44, Tera44 and Tera44 Rubicon HD Differential Cover Kit

This TeraFlex HD differential cover kit is made for the Dana 44, Tera44 and Tera44 Rubicon axles. TeraFlex builds heavy-duty covers to withstand trail damage from rocks, debris and other obstacles. Browse more axle parts.

The vendor estimates one hour of labor. A stronger cover gives the differential housing extra protection on the trail. This listing covers the standard Dana 44 family, while the AdvanTEK M210 front and M220 rear axles each have their own kit. See other drivetrain parts for related upgrades. Confirm which axle you have before ordering.

Why it works
Three axle namesCovers Dana 44, Tera44 and Tera44 Rubicon.
Trail protectionBuilt to take rocks and debris.
1 hour installEstimated labor time is 1 hour.
Specifications
Spec Detail
Axles Dana 44 / Tera44 / Tera44 Rubicon
Product HD differential cover kit
Brand TeraFlex
Estimated labor 1 hour
SKU 3990650
Fitment

Dana 44, Tera44 and Tera44 Rubicon axles. The Dana 44 AdvanTEK M210 and M220 have separate cover kits.

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TeraFlex Dana 44 / Tera44 / Tera44 Rubicon: HD Differential Cover Kit (this item) What you’re viewing $128.99
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$128.99
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Specifications

  • Part number: 3990650
  • Brand: TeraFlex
  • Product: HD differential cover kit
  • Axle: Dana 44 / Tera44 / Tera44 Rubicon
  • Estimated labor: 1 hour
  • Note: AdvanTEK M210 front and M220 rear have their own kits

TeraFlex Dana 44 / Tera44 / Tera44 Rubicon: HD Differential Cover Kit FAQs

Which axles does this cover?

The Dana 44, Tera44 and Tera44 Rubicon.

Is it for the AdvanTEK M210 or M220?

No. Those have their own TeraFlex cover kits.

How long does installation take?

About 1 hour, estimated.

What does the cover do?

It protects the housing from trail damage caused by rocks, debris and other obstacles.

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