Shifter base for AR5 swap from 2004-2012 Chevy Colorado
*** For OE replacement see the complete kits instead. ***
Shifter base for custom conversions using Aisin AR5 5 speed manual transmissions sourced from:
- 2004-2012 Chevrolet Colorado (North America)
- 2004-2012 GMC Canyon
- 2006-2008 Isuzu i-Series
- 2006-2010 Hummer H3
-
2006-2012 Holden Rodeo (RA) / Colorado (RC) - Alloytec 3.6L petrol V6 only
- Does NOT FIT any diesel!
- Does NOT FIT newer models, Isuzu Trooper, Pontiac Solstice, Saturn Sky, Polaris Slingshot, or any other 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"+)
- 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):
| Option | For stick length | stick mount height | stick mount angle | boot type | upcharge |
|---|---|---|---|---|---|
| A | 8" | 2.9 | vertical | Billet Plus | default |
| B | 10" | 3.4 | vertical | Billet Plus | +$10 |
| C | 10"+ | 4.4 | vertical | OE (short) | +$20 |
| D | 12"+ | 5.2 | angled 14 deg left | OE (short) | +$30 |
| G | 6" | 3.3 | angled 11 deg left | OE (short) | +$10 |
- 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
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
- High quality and outstanding value!