1. Manuals
  2. Brands
  3. Baker Manuals
  4. Motorcycle Accessories
  5. GRUDGEBOX
  6. Manual

Baker GRUDGEBOX Manual

2006 – later dyna; 2007 – later softail & touring models
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
PV4-118310

Advertisement

Table of Contents
loading

Summary of Contents for Baker GRUDGEBOX

  • Page 1 PV4-118310...

  • Page 2: Table Of Contents

    PV4-118310 GRUDGEBOX TRANSMISSION KIT TABLE OF CONTENTS About your new GrudgeBox Features and gear ratios GrudgeBox – Behind the name Required parts, tools, and reference materials Included parts Bearing door exploded view Bearing door parts list Gearset exploded view Gearset parts list 10.

  • Page 3: About Your New Grudgebox

    The primary impetus for the design was performance, but the GrudgeBox was also designed for those who spend a lot of time in the saddle looking for that extra gear on the highway. 6 gear is a true overdrive that is numerically mild to yield a 250 RPM drop as compared to the stock unit.

  • Page 4: Features And Gear Ratios

    .200” axial engagement with a less-than 1° undercut. This is a formula for gear hop-out. For the GrudgeBox we chose 4° undercuts with .250” axial engagement in all positions to guarantee NO gear hop-out or missed shifts, which translates into NO lost revenue if you are a Grudge hustler.

  • Page 5: Grudgebox - Behind The Name

    .125” thick shell with stock factory powdercoat. The shell then fits over a billet sub-door, like a 3D puzzle, to yield the Sleeper door which fathered the name GrudgeBox (figure 1). Externally, the GrudgeBox with the Sleeper door gives no indication that a drag racing transmission lives underneath and that may be the difference between winning and losing.

  • Page 6: Required Parts, Tools, And Reference Materials

    PV4-118310 WHAT DO I NEED? REQUIRED PARTS, TOOLS, & REFERENCE MATERIALS To install the GrudgeBox Transmission Kit, the following is required: • Factory Service Manual for your year and model motorcycle • Common hand tools (allen wrenches, sockets, retaining ring pliers, etc.) •...
  • Page 7 PV4-118310 WHAT’S INCLUDED IN MY KIT? GrudgeBox gearset w/ shift system Shifter pawl, 555-GB-A 5/16”-18 SHCS, stainless, 73497 Shifter pawl washer, 6497HW Washers, stainless, 6100 Shifter pawl retaining ring, 68010 Shifter pawl seal, 37101-84B Countershaft bearing, 8963 Bearing door gasket, 35654-67...

  • Page 8: Bearing Door Exploded View

    PV4-118310 BEARING DOOR EXPLODED VIEW FIGURE 3 | EXPLODED VIEW, BEARING DOOR PAGE 6...

  • Page 9: Bearing Door Parts List

    Socket head cap screw, stainless, 5/16”-18 x 1.500” 73497 Washer, stainless, .341” x .560” x .058” 6100 108-GB Bearing door, GrudgeBox, chrome 118-GB Bearing door, GrudgeBox, black w/ highlight 119-GB Bearing door, GrudgeBox, Sleeper 35654-67 Gasket, bearing door Hollow dowel, 10mm x .375” 16583-67 Magnet, .265”...

  • Page 10: Gearset Exploded View

    PV4-118310 GEARSET EXPLODED VIEW FIGURE 4 | EXPLODED VIEW, GEARSET PAGE 8...

  • Page 11: Gearset Parts List

    Spacer, main drive gear, 1.060” x 1.250” x 1.225” 11599-90 5M-GBW gear, mainshaft, 31T, spur DC45-GB Dog clutch, 4 gear, GrudgeBox, all 11067 Retaining ring, external, eaton style, 30mm Thrust washer, 1.185” x 1.380” x .071” 6003B Retaining ring, external, 2.750”...

  • Page 12: Tapered Bearing Exploded View And Parts List

    PV4-118310 TAPERED BEARING EXPLODED VIEW AND PARTS LIST FIGURE 5 | EXPLODED VIEW, TAPERED ROLLER BEARING ITEM DESCRIPTION 5M-GBW gear, mainshaft, 31T, spur OR568132 O-ring, Buna #132 HR32910J Bearing, tapered roller, 50 x 72 x 15mm 11610-GB Adapter, tapered roller bearings Spacer, tapered roller bearings, .102”, white** 11615-GB Spacer, tapered roller bearings, .104”, green*...

  • Page 13: Shift System Exploded View And Parts List

    PV4-118310 SHIFT SYSTEM EXPLODED VIEW AND PARTS LIST FIGURE 6 | EXPLODED VIEW, SHIFT SYSTEM ITEM DESCRIPTION 200-GB-A Shift system, standard pattern 200-GBN1-A Shift system, N1 pattern 200-GBN1RK-A Shift system, reverse N1 pattern w/ kill Socket head cap screw, 1/4"-20 x .750” 23205 102-GB Shift fork, 2...
  • Page 14 The process of installing the GrudgeBox is the perfect time to assess and freshen up these components to ensure the transmission gives you years of trouble-free service.

  • Page 15: Transmission Case Preparation

    Surgically clean the left side of the transmission case in preparation for installing the new GrudgeBox main drive gear and gearset. This surgical cleansing includes the main drive gear and countershaft bearing boss areas, the three inner primary mount bosses, and the shifter pawl boss.

  • Page 16: Tapered Bearing Adapter Installation

    2. Use the aluminum cup provided in your kit in combination with the main drive gear installation tool (BAKER FIGURE 8 | TAPERED BEARING ADAPTER TOOLA-07 or H-D equivalent 35316C) TOOL SETUP, RIGHT SIDE VIEW to install the tapered bearing adapter.
  • Page 17 The bearing bore boss should be heated to at least 200°F. BAKER recommends using an infrared thermometer to verify that the case FIGURE 12 | USE MAP/PROPANE GAS is adequately heated;...
  • Page 18 PV4-118310 INSTALLING THE TAPERED BEARING ADAPTER 6. Immediately after the case is heated, tighten the tool nut to draw the tapered bearing adapter into the case. This operation must be done quickly with no interruptions while the case is hot. If the support plate on the other side of the case starts to bend, stop, loosen the nut slightly, and reheat the case.

  • Page 19: Main Drive Gear Installation

    3. Use a countershaft bearing tool (BAKER TOOLE-07 or equivalent) to press the bearing into the transmission case. You want to press on the outside of the ‘cup’, just as you did during removal.
  • Page 20 INSTALLING THE MAIN DRIVE GEAR 3. Follow the Factory Service Manual to install the main drive gear using BAKER TOOLA-07 or H-D equivalent 35316C. If the H-D equivalent tool is used, you will need to use pulley spacer 33334-GB from...
  • Page 21 When you think your measurement is between .0005” – .002”, Watch Class #4 on the BAKER try spinning the main drive gear. If it spins Drivetrain YouTube channel for freely with no drag and no excessive...
  • Page 22 PV4-118310 INSTALLING THE MAIN DRIVE GEAR 8. Put some transmission fluid on the outer diameter and O-ring of the pulley spacer. Install it onto the main drive gear with the O-ring facing inward (toward the bearing); see figure 22. FIGURE 22 | INSTALLING THE PULLEY SPACER AND THE MAIN DRIVE GEAR SEAL 9.

  • Page 23: Gearset Installation

    Locate the new bearing door gasket onto the dowels of the GrudgeBox bearing door. Generously apply transmission lube to the last 6” of the mainshaft, end of the...
  • Page 24 125 – 135 in-lb with blue threadlocker. Go to the other side of the motorcycle and re-install the drive pulley or sprocket onto the main drive gear. Use BAKER TOOLD-07 or H-D equivalent to torque the pulley / sprocket nut to 35 ft-lb + 35° – 45° with red threadlocker.
  • Page 25 1:1). This changes the input to the ECM. The 41-tooth reluctor ring in the GrudgeBox compensates to correct the speedometer within ± 2 mph with no re-flash to the ECM. However, the gear indicator and cruise control may only operate in 5 gear.
  • Page 26 PV4-118310 WIRING DIAGRAM FOR IGNITION KILL SHIFT DRUMS PAGE 24...

  • Page 27: Terms & Conditions

    Electrical components are guaranteed for 90 days, chrome finish is guaranteed for 6 months. If the product is found by BAKER™ to be defective, such products will, at the option of BAKER™, be replaced or repaired at cost to BAKER™.

  • Page 28: Transmission Oil Change Log

    PV4-118310 TRANSMISSION OIL CHANGE LOG DATE ODOMETER OIL USED SERVICED BY 2,500 7,500 12,500 17,500 22,500 27,500 32,500 37,500 42,500 47,500 52,500 57,500 62,500 67,500 72,500 77,500 82,500 87,500 92,500 PAGE 26...

  • Page 29: General Maintenance Log

    PV4-118310 GENERAL MAINTENANCE LOG DATE ODOMETER WORK PERFORMED SERVICED BY PAGE 27...

Table of Contents