UMI Performance 2219-B Tunnel Mount Torque Arm Kit with Crossmember for 1982-1992 Camaro Firebird TH400

The UMI Performance 2219-B is a tunnel-mounted torque arm and crossmember reinforcement system specifically engineered for 1982-1992 Camaro and Firebird models equipped with TH400 short-tail transmissions. This complete bolt-in kit eliminates the factory torque arm mounting point on the transmission tail shaft, protecting the transmission from damage while dramatically improving traction and eliminating wheel hop.

Key Features:

• Constructed from 1.250" x 0.120" DOM seamless steel tubing for maximum strength
• Front crossmember uses heavy-duty 0.120" x 3.000" rectangular tubing
• TIG-welded 4140 chromoly tube adaptors for superior durability
• On-car adjuster built from heat-treated 4140 chromoly steel
• All mounting plates are CNC machined from 0.188" and 0.250" thick mild steel for precise hole-to-hole accuracy
• Rear mounts feature solid QA1 3/4" rod ends attached with grade 8 hardware
• Includes NHRA-legal front drive shaft loop for shafts up to 3" in diameter
• Durable powder coat finish for long-lasting corrosion resistance

Adjustability and Performance:

• Front pivot mount features greaseable pivot point with instant center adjustment capability
• Two pivot bracket settings allow easy instant center adjustments to optimize 60-foot times
• On-car pinion angle adjustments eliminate the need for removal
• Reduces front-end nose dive during braking for improved control

Installation and Hardware:

• Complete bolt-in design requires no welding or drilling
• Bolts to existing floor pan holes using metric grade 10.9 hardware
• Front pivot mount supplied with grade 8 mounting hardware and locking nuts
• Rear mounting plates are drilled to fit stock, aftermarket 12-bolt, and 9" rear-end housings
• Energy Suspension greaseable polyurethane bushings minimize road noise and eliminate clunking
• Includes transmission crossmember with TH400 provisions and new adjustable torque arm

This system moves the torque arm mounting point from the vulnerable transmission tail shaft to a reinforced tunnel mount location, making TH400 transmission swaps a straightforward 100% bolt-in installation. The polyurethane bushings absorb road irregularities while maintaining performance, keeping unwanted noise out of the passenger compartment. Installation can be completed with basic hand tools.

Note: New rear torque arm hardware kit recommended when running with stock rear-ends, Strange, or similar rear-ends using straight-through bolt design. If using Moser Engineering 12-bolt rear-end, reuse Moser-supplied hardware. Hardware kit recommended for Moser 9" applications.