• Shortcut to fulcrum chart

Shifter base for custom conversions using TR6060 transmissions sourced from:

• 2009 Pontiac G8 GXP
• 2010-2024 Camaro - V8 only
• 2015-2017 Chevrolet SS
• 2016-2019 Cadillac ATS-V
• 2022+ Cadillac CT4-V Blackwing
• 2022+ Cadillac CT5-V Blackwing
• 2007-2017 Holden Commodore VE & VF (V8 only)
• 2007-2017 HSV E-series & Gen-F aka Vauxhall VXR8

• NOT FOR USE IN ANY OF THESE CARS! Stick is NOT offset rearward like OE & will NOT FIT in console - it would be ~15" ahead, under the dashboard...
• ONLY fits TR6060 w/ LINKAGE COVER at forward port (not BLANK cover)
  • NO modifications! Simply remove linkage cover and install base (see pics)
    • For TR6060 with blank cover - rail linkage must be reconfigured to include GM #19210307 shift lug with bushing cup; this is a major job that requires custom machining and transmission disassembly
• Shifter stub will come through floor directly above linkage cover ~19" from engine block! In most cars this is WAY too far forward (see pic). For more info click here
• For driveshaft help - contact The Driveshaft Shop

This base does NOT FIT ANY T56 - different detent architecture requires different parts!

• NOTE: Conversion parts from McLeod & Keisler / SST etc are NOT equivalent to OE TR6060 linkage receptacle - different depth, different base

This base mounts on a 4-bolt rectangular pattern that is ~ 2.88" wide x 3.65" long; stub pivot ball center is ~1.5" below the flange. It only fits in forward location as discussed above. For tail port bases (Viper, Challenger, Falcon), see separate listings - these vary by model

A Hurst stick is required (NOT included, sold separately). Other brands and homemade sticks are discouraged. Stick mount has 3/8"-24 threaded holes spaced 7/8" apart on center + mating serrations for a Hurst stick on one face. Due to larger mounting threads (3/8"-24), sticks that use 8mm mounting bolts (most OE, "non-TKO" Lokar, others) will not work. Lokar TKO sticks can be mounted but only to the smooth side of the stub. To select the proper parts:

• Wait until new transmission is installed to buy shifter parts
• Remove existing shifter base if present
• Sit in vehicle, in driving position, with all interior trim (dash, console, etc) in place
• Define desired knob location in space (neutral position):
• Measure height from base flange to desired knob location = overall height
• Measure side & rear offsets from receptacle bore to desired knob location
• See this diagram for clarification
• Study the Hurst stick page for shapes that meet your needs
• Allow 3-6" for stick mount height
• Choose a stick and see what fulcrum heights are compatible with it (see chart)
• Check overall height (see chart: stick height + mount height = overall height)
• Confirm chosen combination achieves desired knob location and that fulcrum height works with stick length selected
• Consider various stick & stub combinations to optimize
• Note long sticks on angled mounts will strongly offset knob to left (can be 5-6"+)
• Options E & F require a Hurst stick directly mounted on side w/ serrations

Stub fulcrum height options (critical to optimizing leverage for short throw):

• Stick length = point-to-point distance from mount hole to knob thread
• Stick mount height = distance from base flange to stick bolt hole (affects knob height)
• Fulcrum height = distance from lower ball to fulcrum pin; varies by option, not published
• Warning: Follow stick length guide to avoid excess effort & component failure

Kit includes mounting hardware and instructions. The base is built by Core Shifters using proven components inside a custom housing:

• Billet steel gear selector stub
• Hardened steel cross-pin & stainless steel fulcrum pivot ring
• Self-centering cross-gate bias springs with heat treated spring seats
• Glass-reinforced polyamide fulcrum socket with steel wear clips
• Extruded aluminum housing with Spirolox steel support ring
• Zinc-plated laser-cut steel base-plate & cover
• Rubber oil control seal with steel retaining ring
• Vibration-resistant serrated flange head steel retaining bolts