Baker Stock Replacement DD5The Baker Drivetrain DD5 "is not just a replacement for the stock 5-speed - the torque capacity, long term durability and shift quality are greatly improved over stock and will handle up to 200 hp with no problem," says 'Guru of Go' Bert Baker.
Features include a one-piece countershaft with fifth gear, larger door bearings, billet 6061-T6 chrome door for strength, hard chrome plated shift forks for wear resistance, smooth roller shift system with redundant neutral that vastly improves neutral finding and a five-year limited warranty.
Bert says that "it handles over 200 ft/lbs of torque - more than stock - and gives way smoother shifting; our longer lasting components make it more reliable and durable, and until you have experienced the ease with which the DD5 allows you to find neutral, you don't know what you've been missing."
All DD5 bearing doors have the same outer profile as a stock 5-speed, so exhaust brackets, torque arms etc. fit like stock. The DD5 door comes with or without an ear - the ear door is for exhaust bracket mounting (and does not fit 1993-2006 FL applications). The DD5 door bearings are larger, providing 25% more dynamic load capacity than the stock bearings used through 1998.
"Our 5-speed shift system with roller detent guarantees smooth shifts every time and our redundant neutral ensures that finding neutral is easy. We mount a plunger detent on the left side pillow block and cut a plunger track into the shift drum itself. The plunger follows this track during operation (shifting) and when shifting into neutral pops into a pocket. This system lets you feel that you’re shifting into neutral - no more guessing. The shift drum features more aggressive timing on the fork groove profiles and is case-hardened to 58 Rockwell for wear resistance and crisp shifts. We built our reputation on smooth shifting 6-speed transmissions, and our 5-speed drum designs benefit from the engineering lessons learned."
The splined main shaft comes as standard on the DD5 builder’s kit. A +.800″ main shaft and pulley for wide tire applications is available upon request. The 2.94 1st gear ratio is described as a good all-rounder; the optional 3.24 1st gear is recommended for heavy GVW applications; the R-Ratio 2.82 1st gear is recommended for light hot rods. "We recommend a 2.21 2nd gear ratio for use with the 2.94 and 3.24 1st gear ratios. The 2.08 2nd gear is normally paired with the 2.82 1st gear for racing applications.
"All DD5 gearsets come with a one-piece counter shaft, eliminating the well-known Achilles heel of the stock 5-speed under high horsepower and/or heavy GVW applications - namely that the 5th gear cracks radially and splits in half with catastrophic results. Our one-piece design is good to 200 hp. All our gears are made out of 8620 steel – shaper-cut before heat treatment (58-62 Rockwell ‘C’) then precision-ground with diamond coated tooling; these extra steps ensure not only a quieter gear pair, but enables much tighter backlash control."
Applications include '87-'89 Softail, FXR, FLT-FLH; '90-'06 Softail, FXR; '90-'92 FLT-FLH; '91-'05 Dyna; '93-'06 FLT-FLH.
BAKER DRIVETRAIN
www.bakerdrivetrain.com