*** For OE replacement see the complete kits instead. ***

• Shortcut to fulcrum chart

*** Not quite as pictured but very similar. Same concept but baseplate is smaller to fit application. ***

Shifter base for custom conversions using a 1997-2019 Corvette driveline:

• Fits onto OE shifter box that mounts onto OE torque tube found in:
• 1997-2004 Corvette C5
• 2005-2013 Corvette C6
• 2014-2019 Corvette C7
• Allows use of a Hurst bolt-on stick (see below)
• NOT FOR USE IN THESE VEHICLES - see separate listings for complete kits
• Does NOT FIT ANY OTHER MODEL!!

Mounts on the OE specialized remote linkage framework for rear-mounted transaxle configuration with shift rail entering through front of case (see pic). For swaps using complete Corvette chassis only. Rectangular 4-bolt pattern that is ~ 1.6" wide x 3.1" long; stub pivot ball center is ~1.4" below the flange

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"+)
• Note OE dust boot is short and exposes stick mount which helps in tight situations
• 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, dust cover boot, and instructions.The base is built by Core Shifters using proven Hurst Billet Plus components inside a custom housing. This kit has many superior features & components, integrated into a unique, exclusive assembly:

• Forged heat-treated 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
• Rubber oil control seal with steel retaining ring
• Extruded aluminum housing with Spirolox steel support ring
• Zinc-plated laser-cut steel base-plate & cover
• Vibration-resistant serrated flange head steel retaining bolts
• Rubber dust cover boot (style varies)
• High quality & outstanding value!