I am selling a brand new, never installed RPM Transmission Level 4 TR-6060 six-speed gearbox, built specifically to fit a C5 Corvette. We bought it new directly from RPM, and it has been sitting in storage completely untouched ever since. It's not just any old shelf-stock unit; it's a hand-built performance transmission, assembled to RPM's exacting specifications and upgraded far beyond stock in every meaningful way.
What's included/build specs:
- Media-blasted case
Clean slate inside and out
Hand-fitted sliders and hubs
Zero slop, smooth engagement
Bronze fork pads and gears 1–6 + reverse.
Better wear resistance throughout.
Micropolished by Performance Metal.
Reduced friction for buttery shifts.
Cryogenic tempering
Hardened internals for a longer lifespan.
ZR1 pickup tube upgrade.
Better oiling under high demand
Carbon blocking rings
Faster, cleaner synchro action
6L Royal Purple Synchromax included.
Ready to fill and go!
Whether you're building a C5 street/strip car or simply want a transmission that's a significant improvement on the standard model, this is it. Every detail has been addressed, including bronze shifter bushing and bronze fork pads on every gear, including reverse. The carbon blocking rings ensure the synchros snap cleanly. Most rebuilders don't bother with cryogenic tempering, but it genuinely extends the life of the internals under hard use. It's priced well below the cost of a new build from RPM today, and it's hard to beat for a ready-to-bolt-in unit. Serious offers considered.
- Cash
- Wire Transfer
- Paypal
