Welded IS300 Differentials

Professionally welded, strength guaranteed

Select Your IS300 Differential Type

The Lexus IS300 is a popular platform for drifting thanks to its rear-wheel-drive layout, strong drivetrain and excellent chassis balance.

WeldedDiff.com offers multiple ways to get a professionally prepared welded differential carrier for your IS300, depending on what differential your car has now and whether you want to use our exchange program or send us your own carrier.

Choose the option that best matches your current setup.

Open Differential TIG Weld Service (MAIL IN REQUIRED) Open Differential TIG Weld Service (MAIL IN REQUIRED)
Open Differential TIG Weld Service (MAIL IN REQUIRED)
$200.00

Send us your open differential carrier and we’ll TIG weld it into a permanently locked assembly for drift and motorsports use.

Already have the differential you want to use? Our Open Differential TIG Weld Service gives you a professional alternative to sourcing another complete differential assembly.

Purchase the service online, remove and disassemble your differential, then ship the open differential carrier to us. We’ll prepare and TIG weld the carrier to lock the differential, inspect the completed assembly and ship it back to you ready for reinstallation into your differential housing.

IS300 Welded Torsen Diff (Includes $300 Refundable Core) IS300 Welded Torsen Diff (Includes $300 Refundable Core)
IS300 Welded Torsen Diff (Includes $300 Refundable Core)
$500.00

Professionally prepared and TIG-welded Lexus IS300 Torsen differential carrier for drift and motorsports use. Permanently locks both axle outputs together for consistent rear-wheel behavior. Sold through our core exchange program with a refundable core charge and backed by our one-year carrier and weld warranty.

Why Weld an IS300 Differential?

A welded differential permanently locks the two rear axle outputs together.

For drifting, that provides consistent rear-wheel behavior without relying on the variable action of an open differential or limited-slip system.

A welded carrier can provide:

  • Permanent rear-wheel lock

  • Predictable behavior during initiation and transitions

  • Consistent wheel speed during sustained drifting

  • Simple mechanical operation

  • Lower cost than many aftermarket LSD options

For a dedicated or primarily drift-focused IS300, it can be a straightforward and cost-effective way to achieve the locked differential behavior many drivers want.

Professionally Prepared and TIG Welded

Every WeldedDiff.com carrier follows the same basic process:

Clean → Prepare → Preheat → TIG Weld → Cool → Inspect

We focus on repeatable preparation and controlled welding rather than treating each carrier as a one-off fabrication job.

You can learn more about how we prepare our carriers on our Build Process page.