HMS 3550, TKO 500/600 Carbon Lined Blocker Ring


Fits TKO 500 / 600 and 3550 Transmissions

In stock (can be backordered)



  • Carbon Lined Replacement Blocker Rings
  • Fits TKO 500 / 600, 3550 Transmissions
  • Dramitacally Increase’s Higher RPM
  • Improves Shift Quality
  • Recommended To Use GM or Pennzoil Synchromesh Oil
  • Sold Individually

Improves Shifts. This HMS Carbon Lined Block Ring is a must-have mod for your vehicle whether it sees mostly daily driver duty or serious track time. Using an innovative carbon design that makes each shift better and faster. Dramitacally raises shifting RPM’s by eliminating the notching during shifting!

Premium Quality. You won’t find a better made carbon lined block ring. OEM type blocker ring lined with premium carbon for faster shifts and eliminating notching. It is recommended to use GM or Pennzoil Synchromesh oil when using these rings.Application. This HMS Carbon Lined Blocker Ring fits all 3550 & TKO 500 / 600 manual transmissions. Sold Individually.

Additional information

Weight 1 lbs
Dimensions 6 × 6 × 4 in