JY PERFORMANCE Adjustable Transmission Crossmember for Chevy/GMC C10 C20 1964–1987 — Powder-Coated Heavy-Gauge Steel

JY PERFORMANCE's adjustable transmission crossmember replaces the factory unit on 1964–1987 Chevy and GMC C10/C20 2WD trucks to restore correct driveline angle and provide heavy-duty support for lifted or lowered rigs.

Whether you're restoring a classic C10/C20, lifting a project truck, or correcting driveline geometry after suspension changes, this heavy-gauge steel crossmember is engineered to give a precise fit and durable service. It’s powder-coated for corrosion resistance and includes adjustability so the transmission stays at the correct angle relative to the driveshaft, reducing vibration and wear.

How does this crossmember maintain proper driveline alignment?

The crossmember adjusts to keep the factory transmission angle even when ride height changes. That correct angle helps the driveshaft and universal joints run smoothly, minimizing vibration and premature joint wear. Adjustability also simplifies fitting non-stock suspensions.

• Multiple mounting positions to set the transmission height accurately
• Designed to preserve factory transmission-to-driveshaft geometry
• Works for both lifted and lowered chassis setups

Will it fit my 1964–1987 C10, C20, Blazer or Suburban?

This crossmember is made specifically for 2WD models from 1964 through 1987 and will fit C10 and C20 trucks as well as corresponding Blazer and Suburban platforms. Verify model year and drive type before ordering; the part is not for 4WD or independent rear suspension variants.

• Compatibility: 2WD 1964–1987 Chevy/GMC C10, C20, Blazer, Suburban
• Not compatible with 4WD or non-standard frame modifications
• Check transmission mount style and frame condition prior to install

What materials and finishes are used, and how durable is it?

The crossmember is fabricated from heavy-duty steel and finished with a black powder coat to resist rust and road wear. The construction is intended to withstand the loads of street and light-duty off-road use while providing a long service life with basic care.

• Heavy-gauge steel construction for structural strength
• Black powder-coat resists corrosion and looks factory-clean
• Precision-formed plates and welds for reliable mounting

How difficult is installation and what should I prepare?

Installation is straightforward for experienced home mechanics and shops familiar with drivetrain work; it typically involves removing the old crossmember and bolting the new unit to factory frame holes. Have basic hand tools, a jack or lift, and a transmission support in place before starting.

• Requires jack or lift and a transmission support tool
• Bolts to existing factory frame locations—no welding in normal installs
• Allow time to measure and set the transmission angle during final tightening

Who this is for: If you own a 1964–1987 Chevy or GMC C10/C20, Blazer, or Suburban 2WD and need a rugged, adjustable solution to correct transmission angle after a lift, drop, or restoration, this crossmember is built for that purpose. It’s aimed at restorers, custom truck builders, and DIY mechanics who want a durable replacement that keeps driveline geometry correct while resisting corrosion and road abuse. For questions about fitment or installation we typically respond within 24 hours.