American Motorcycle Dealer AMD 242 September 2019 | Page 39
Baker Stock Replacement DD5
The 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
PARTS AND ACCESSORIES
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
Haslett, Michigan, USA
Tel: 517 339 3835
[email protected]
www.bakerdrivetrain.com