S&S Cycle Transmission Case, 4-to-5 Speed User Manual

Page 5

Installation
Installation of transmission with S&S

case is similar to

installing stock transmission. Refer to Harley-Davidson

Service Manual for information on transmission installation
and checking primary and drive chain alignment. After
installation is complete, add 24 oz. of Harley-Davidson
Transmission Lubricant or equivalent. Normal capacity after
initial servicing is 21 oz. Refill transmission that has been
removed from motorcycle and completely drained with 24
oz. Five-speed transmission in four-speed case does require
modification of stock shifter linkage, footpeg mount (FX
models only) and starter/battery box mount, or
replacement of stock items with S&S parts. Installation of
S&S parts is as follows:
1. Footpeg Adapter Kit, 57-4604. See Figure 2 on pg 7.

Install footpeg adapter bracket 57-4603 on
transmission with two sockethead cap screws 50-0121
and 50-0079. Shorter screw goes in bottom hole.

Install the existing footpeg-brake bracket on the
footpeg adapter bracket with three sockethead
capscrews 50-0121, three flat washers 50-7025
and one shim 56-7047.

Remove the rear brake master cylinder, place the
shims 50-7049 between the master cylinder and
existing shims H-D

#50668-35 and reinstall master

cylinder with provided hex-head screws 50-0134.

Starter-Battery Box Bracket Kit, 57-4605. See Figure 2 on
pg 7.
a.

Attach bracket 57-4600 to tapped hole on upper
rear corner of access door with hex-head screw
50-0108 or 50-0111, spacer 50-7046 or 50-7048
and flat washer 50-7025.

NOTE: Hitachi starter requires shorter, 1" screw, 50-0108 and
narrow. 0.220" shim 50-7046. Prestolite starter requires longer,
1

⁄

" screw 50-0111 and wider, 1" shim 50-7048.

Install starter with original nuts and washers and
attach bracket to rubber mount on battery box.

Starter-Battery Box Bracket Kit, 57-4606. See Figure 3
on pg 7.
a.

Attach bracket 57-4601 to tapped hole on upper
rear corner of access door with hex-head screw
50-0108 or 50-0111, shim 50-7046 or 50-7048 and
flat washer 50-7025.

Install starter with original nuts and washers.

Attach bracket 57-4602 to upper front corner of
access door. Attach battery box rubber mount
to bracket.

Shift Linkage Kit, (57-4750). See Figure 4 on pg 8.
a. Remove original shift rod from front ball-joint fitting.
b.

Install nuts 50-5023 on shift rod 57-4754 and turn in
to center of shift rod.

Install clevis 57-4752 on either end of shift rod.

Install original ball-joint fitting on other end of
shift rod.

e. Adjust clevis to place shifter peg in desired position

and tighten nuts against clevis and ball-joint fitting.

f. Install correctly adjusted shifter rod assembly on

motorcycle with supplied shoulder screw 50-0089.
Apply thin film of Loctite #243 (blue) or equivalent
to bolt threads and install flat washer 50-7017 and
nut 50-5012. Tighten nut to 10 ft-lbs.

NOTE: Shoulder screw 50-0089 must be inserted through clevis
with threads toward center of motorcycle.

Shift Linkage Kit, 57-4756
a.

Remove ball-joint fitting from original shift rod

Install nuts 50-5023 on shift rod 57-4755 and turn in
to center of shift rod.

Install clevis 57-4752 on either end of shift rod.

Install original ball-joint fitting on other end of
shift rod.

Adjust clevis to place shifter peg in desired position
and tighten nuts against clevis and ball-joint fitting.

Install correctly adjusted shifter rod assembly on
motorcycle with supplied shoulder bolt 50-0089.
Apply Loctite

#243 (blue) or equivalent to bolt

threads and install flat washer 50-7017 and nut
50-5012. Tighten nut to 10 ft-lbs.

NOTE: Shoulder screw 50-0089 must be inserted through clevis
with threads toward center of motorcycle.

*All reference to H-D

part numbers is for identification purposes

only. We in no way are implying that any of S&S Cycle’s products
are original equipment parts or that they are equivalent to the
corresponding H-D part number shown.