3 Bolt Adapter Flange Yoke Kit – Sonnax T35-GMFD-01K

Upgrade your driveline with the Sonnax 3-Bolt Adapter Flange Yoke Kit (T35-GMFD-01K). Engineered to adapt select GM transmissions and differentials to a heavy-duty 1350 series U-joint driveshaft, this kit delivers the strength and precision needed for high-performance street and race applications.

Why Choose This Kit

• Direct OE Fit: Perfect match for GM 6L80, 6L90, 8L90, 10L80, TR6060, TR3160,

  ’18–’22 Mustang MT-82 manual units

   transmissions, plus the differential side of 2005–2006 Pontiac GTO.

• Performance Upgrade: Replaces weak OE-style connections with a robust 1350 U-joint flange for maximum durability under high torque loads.

• Premium Construction: CNC-machined from lightweight 6061-T6 billet aluminum for excellent strength without added weight.

• Complete Solution: Includes spacer for proper installation on 8L90 and 10L80 transmissions.

Technical Specs

• U-Joint Series: 1350

• Bolt Count: 3

• Bolt Circle Diameter: 110 mm (≈4.33")

• Bolt Hole Diameter: 0.500"

• Pilot Diameter: 0.631" (female)

• Flange OD: 5.450"

• Flange Face to Centerline: 3.000"

• Weight: ~1.98 lb

Fitment Note

Check your transmission or differential bolt spacing and flange dimensions before ordering to ensure correct fitment.