Prothane 6-1606BL Heavy-Duty Transmission Crossmember & Polyurethane Mount Kit - Black

The Prothane 6-1606BL is a complete heavy-duty transmission crossmember and polyurethane mount kit in black. This combo kit replaces both the factory rubber transmission mount and the original stamped steel crossmember, delivering a significant upgrade in drivetrain stability and long-term durability.

The polyurethane transmission mount features Prothane's internal "run safe" mechanical interlocking steel inserts, providing a safety interlock that keeps the drivetrain secure even under hard use. The replacement crossmember is a fully boxed steel design — a major strength improvement over the factory stamped steel unit — and is finished with a zinc plating for lasting corrosion resistance.

Key Features:

• Complete kit includes polyurethane transmission mount and heavy-duty steel crossmember
• Fully boxed crossmember replaces factory stamped steel for superior rigidity
• Internal mechanical interlocking steel inserts for added safety
• Zinc-plated crossmember finish resists corrosion and rust
• Resistant to oil, chemicals, and road contaminants that degrade rubber
• Compatible with both automatic and manual transmissions
• Application-specific engineering — not a universal fit
• All installation hardware included
• Black polyurethane color; graphite-infused compound helps reduce squeaking
• Backed by Prothane's lifetime warranty against defects in materials and workmanship
• Made in USA

Unlike soft factory rubber mounts that deteriorate over time and allow excessive drivetrain movement, Prothane's specially formulated polyurethane resists breakdown from heat, oil, and road grime. The result is tighter drivetrain response, reduced driveline slop, and improved shifting feel without the harshness associated with solid metal bushings. Apply the included grease at installation for quiet, long-lasting operation.