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 The Big Twin 4 Speed Transmission
  Updated  10/29/08

Contact us at EMAIL

$ 32.37



35230-39-K
1936 thru 1979
4 Spd. Main drive Oil Seal kit

New and improved set !!
Includes  1 #12013-A main drive seal, 2 #12014 clutch seal, 1# 12018 inner primary seal, 1 #35230-39-DL main drive seal, 1 #35231-36 cork washer, 4 # 6 lockwasher, 4 #6 screw, 1 # 35175-38 drive gear key, 1 # 35216-36 main gear lock plate, 1 # 37503-41 clutch nut lock plate, 1 # 36025-36-X  countershaft oil seal.

$ 17.25




All 36-64 4 speeds.
$ 7.11


$ 32.37




$ 7.28



$ 18.26




$ 18.20







4 Speed Lock Ring Kit

NOT a James item, but one we do strongly advise.
All the lock rings, snap rings, & c clips for rebuilding your 4 speed transmission. USA made of course.

$19.95


1936-79 BT Ratchet TopTransmission Hardware Kit

Complete set of misc. hardware for rebuilding your 4 spd. transmission. Don't take chances.

$59.95

1979-84 BT Rotary TopTransmission Hardware Kit

Complete set of misc. hardware for rebuilding your 4 spd. transmission. Don't take chances.

$59.95
#8112-20
Replacement side cover & clutch arm nut kit, chrome, 1936-1984
$ 10.95



# 9671-20
Replacement side cover & clutch arm nut kit, parkerized, 1936-1984
$ 7.95

# 9620-13
Replacement top cover screw kit, parkerized,
1936-1955
$ 12.95

# 8147-13
Replacement top cover screw kit, chrome,
1956-1964
$ 17.95

# 8748-12
Replacement top cover screw kit, chrome, allen
1965-1978
$ 22.95

# 9656-8
Replacement top cover screw kit, chrome,
FL,FX 4 speed
1979-1985
$ 6.95

# 9637-13
Replacement kicker cover stud kit, parkerized,
1936-1984
$ 11.95



# 9612-13
Replacement top cover screw kit, chrome,
1936-1955
$ 17.95

New transmission case
New transmission case

#1 -  OEM # 6400HB
Washer, steel
$ .50 each
 #1A - OEM# 7045
Lock Washer, hi-collar
  $ .25 each



#2 - OEM # 8905
Bearing, main drive gear 1977-1981
$ 14.95
  #2A - OEM# 8906
Bearing, main drive gear 1982-1985
$ 27.95
#3 - OEM # 9084-88
Rollers, set, std 1937-1977
$ 14.95 Set
#3 - OEM # 9085-88
Rollers, set, .0004 1937-1977
$ 14.95 Set
#3 - OEM # 9086-88
Rollers, set, .0008 1937-1977
$ 14.95 Set
#3 - OEM # 9087-88
Rollers set,.001 1937-1977
$ 14.95 Set
#4 - OEM # 12013A
Oil seal, main drive gear 1965-66, L81-90
$ 2.50
 
#4 - OEM # 12022
Oil seal, main drive gear 1965-E81
$2.50 

#4A - OEM # 16830-29A
Stud, transmission end, 1965-1969
$ 2.95 each
#5 - OEM # 33298-36
Stud, side cover, 1 3/8", 1937-1964
$ 2.95 each
#5 - OEM # 33298-65
Stud, side cover, 1 1/2", 1965-1984
$ 2.95 each
#6 - OEM # 34724-36
Stud, bottom, std, 1.625", 1941-1983
$ 2.95 each

#6 - OEM # 34723-47
Stud, bottom, oversize, 1.625", 1936-1983
$ 2.95 each

#7 - OEM # 34735-36
Adjusting screw, chrome 1937-1964
$ 14.95 each


#8 - OEM # 35039-65
Mainshaft, USA, 1965-1969
$ 179.95


#8 - OEM # 35039-65
Mainshaft, imported, 1965-1969
$ 99.95
#8 - OEM # 35039-65
Mainshaft, Andrews, 1965-1969
$ 179.95


#8 - OEM # 35039-70B
Mainshaft, USA, 1970-1984
$ 159.95

 #8 - OEM # 35039-70B
Mainshaft, Andrews, 1970-1984
$ 179.95
#8 - OEM # 35040-50
Mainshaft, USA, 1941-1964
$ 159.95




#8 - OEM # 35040-50
Mainshaft, Andrews, 1941-1964
$ 179.95


#9 - OEM # 35065-65B
Main drive gear, (26T) 1937-1977
$ 99.95


#9 - OEM # 35065-65B
Main drive gear, (26T), Andrews 1937-1977
$ 129.95
#9 - OEM # 35067-77
Main drive gear, (26T) 1977-1984
$ 99.95

#9 - OEM # 35067-77
Main drive gear, (26T), Andrews 1977-1985
$ 139.95

#10 - OEM # 35070-77
Spacer, main drive gear, 1977-1979
$ 21.95

#10 - OEM # 35070-80
Spacer, main drive gear, 1980-1981
$ 23.95

#10 - OEM # 35070-82A
Spacer, main drive gear, 1982-1984
$ 23.95

#10 - OEM # 35070-84
Spacer, main drive gear, L1984--1986
$ 23.95

#11 - OEM # 35079-80
Spacer, main shaft sprocket, 1980-1981
$ 2.95

#11 - OEM # 35079-82A
Spacer, main drive gear, 1982 only
$ 23.95
#12 - OEM # 35094-65
Bushing, main drive gear 1931-1984
$ 14.95
#13 - OEM # 35125-37
Bushing, std, mainshaft race, 1937-E77
$ 49.95
#13 - OEM # 35125-77
Bushing, .002, mainshaft race, 1937-E77
  $ 49.95
#14 - OEM # 35129-36
Retaining ring, mainshaft race, 1937-77
$ 1.95
#15 - OEM # 35131-36
Bearing washer, std, 1937-77
$ 5.95
#16 - OEM # 35159-39
Oil deflector, main drive gear, 1937-77
$ 7.95
#17 - OEM # 35160-80
Kit, oil deflector, main drive gear,
Includes 1 ea. - 35159-39, 35211-36, 35216-36
1937-77
$ 11.95
#18 - OEM # 35171-37
Spacer, main drive gear,
1937-77
$ 23.95
#19 - OEM # 35175-38
Key, drive gear spacer, 1937-77
$ .95
#20 - OEM # 35203-36
Sprocket, countershaft,
Contact us for list of available sprockets.
1936-79
$ 21.95
#21 - OEM # 35211-36
Nut, sprocket to drive gear,
1936-84
$ 9.95
#22 - OEM # 35216-36
Lock tab, mainshaft sprocket nut, 1937-83
$ .95
#23 - OEM # 35230-36
Oil seal, mainshaft race , 1936-79
$ 3.95
#24 - OEM # 35231-36
Gasket, mainshaft oil seal
 1936-77
$ .95
#25 - OEM # 35282-59
Gear, mainshaft cluster, low & 2nd 15Tx20T
1959-85
$66.95
#26 - OEM # 35306-59
Gear, mainshaft third, (24T)
1937-84
$ 49.95
#26 - OEM # 35306-59
Gear, mainshaft third, (24T)
Andrews
1937-84
$ 69.95
#27 - OEM # 36025-36
Gasket, countershaft
1936-64
$ .95
#28 - OEM # 36027-36
End cover, countershaft, chrome
1936-64
$ 8.95
#28 - OEM # 36027-36 KIT
End cover, countershaft, chrome, 1936-64
Includes 4ea. #2582, 4 ea. #7115, 1 ea. #36025-36, 1 ea.  # 36027-36
$ 10.95
#29 - OEM # 37436-36
Bushing, mainshaft ends
1937-80
$ 1.95 each
#30 - OEM # 37741-67
Oil seal. mainshaft
1980-81
$ 3.95
#30 - OEM # 37741-82
Oil seal. mainshaft
1982-86
$ 3.95
#5A - OEM # 34090-84
See first section - Inner bearing race, 4th gear
1984-86
$ 23.95

#1 - OEM # 7911
Nut, kick starter c/s, 1/2x20
1936-79
$ 2.95

#2 - OEM # 9084
Roller set, std, m/s & c/s
1937-77
$ 14.95 set
#2 - OEM # 9085
Roller set, .0004, m/s & c/s
1937-77
$ 14.95 set
#2 - OEM # 9086
Roller set, .0008, m/s & c/s
1937-77
$ 14.95 set


#2 - OEM # 9087
Roller set, .001, m/s & c/s
1937-77
$ 14.95 set
#3 - OEM # 11115
Oring, countershaft
1965-84
$ .95


#4 - OEM #33082-16
Lock tab, c/s & starter crank
1936-79
$ .95


#5 - OEM # 35614-65
Countershaft
1937-75
$ 29.95
#5 - OEM # 35614-76
Countershaft
1976-79
$ 29.95


#5 - OEM # 35614-80
Countershaft
1980-84
$ 29.95


#6 - OEM # 35630-36
End plate, countershaft
1937-79
$ 2.95


#7 - OEM # 35699-76
Gear, countershaft cluster
15Tx17T
1976-84
$ 119.95

#7 - OEM # 35700-36
Gear, countershaft cluster
15Tx17T / Andrews
1936-E76
$ 119.95



#7 - OEM # 35700-69
Gear, countershaft cluster
15Tx17T
1936-E76
$ 129.95



#7 - OEM # 35700-76
Gear, countershaft cluster
15Tx17T / Andrews
L1976-84
$ 129.95


#8 - OEM # 35665-36
Shifter clutch, 1st & 2nd
1940-84
$ 39.95


#8 - OEM # 35665-36
Shifter clutch, 1st & 2nd
Andrews
1937-84
$ 49.95



#9 - OEM # 35751-36
Gear, 2nd, 21T
1937-84
$ 44.95



#9 - OEM # 35751-36
Gear, 2nd, 1:82 / Andrews
1937-85
$ 59.95


#9 - OEM # 35751-79
Gear, 2nd, 24T
1980-85
$ 59.95


#10 - OEM # 35765-36
Gear, 1st, 26T
1936-84
$ 49.95


#11 - OEM # 35789-36
Bushing, 1st gear c/s
1937-84
$ 11.95


#12 - OEM # 35791-36
Bushing, 2nd gear c/s
1937-84
$ 11.95



#13 - OEM # 35810-36
Retaining ring, 2nd gear c/s
1937-84
$ 1.95


#14 - OEM # 35811-36
Thrust washer, 2nd gear c/s
1937-84
$ 4.25


#15 - OEM # 35812-36
Thrust washer , 1st gear c/s
1937-84
$ 3.95


#16 - OEM # 35875-36
Washer, c/s gear ( set / 7)
1ea, .074, .078, .082, .085, .090, .095, .100
1937-84
$ 24.95


#17 - OEM # 35915-36
Washer, bearing retainer, outer,std,
1937-84
$ 3.95


#18 - OEM # 35917-36
Washer, bearing retainer c/s, inner
1937-76
$ 3.95

#19 - OEM # 35920-36
Retaining ring, c/s bearing
1937-77
$ 1.95


#20 - OEM # 35961-52
Bearing, m/s & c/s (open end )
1977-85
$ 10.95


#21 - OEM # 36045-76
Bushing, std,c/s starter side
1976-79
$ 11.95


#21 - OEM # 35046-36
Bushing, std,c/s starter side
1937-76
$ 11.95


#21 - OEM # 36048-36
Bushing, std,c/s clutch side
1937-76
$ 11.95


#21 - OEM # 36048-76A
Bushing, std,c/s clutch side
1976-84
$ 11.95




#1A - OEM # 1864B
Screws, bumper plate
1941-84
.95 Each

#1 - OEM # 9020
Bearing, mainshaft
1936-84
$ 13.95
#2 - OEM # 33298-65
Stud, side cover, 1 1/2"
1965-84
$ 2.95 Each
#2A - OEM # 33353-36
Bumper plate, starter gear stop
1936-E78
$ 2.95
#2A - OEM # 33353-78
Bumper plate, starter gear stop
L1978-84
$ 2.95

#3 - OEM # 33429-39
Oil deflector, starter gear
1939-79
$ 2.95

#3 - OEM # 33429-80
Oil deflector, starter gear
1980-84
$ 2.95
#4 - OEM # 34090-84
Inner bearing race, 4th gear
1984-86
$ 24.95
#5 Mainshaft
See first section


#6 - OEM # 35046-36
Nut, mainshaft bearing
1936-84
$ 5.95
#7 - OEM # 35050-40
Locktab, mainshaft bearing nut
1936-84
  $ 75 Each

#8 - OEM # 35100-36
Housing, mainshaft ball bearing
1937-79
$ 37.95
#8 - OEM # 35100-79
Housing, mainshaft ball bearing
1980-84
$ 37.95

#9 - OEM # 35111-36
Retaining plate, bearing housing
1937-79
$ 13.95

#9 - OEM # 35111-80
Retaining plate, bearing housing
1980-84
$ 15.95
#10 - OEM # 35282-59
See first section


#11 - OEM # 35306-59
See first section


#12 - OEM # 35322-38
Bushing, 3rd gear
1937-59
$ 17.95

#13 - OEM # 35337-36
Retaing ring. m/s 3rd gear
1936-84
$ .95 Each

#14 - OEM # 35365-36
Washer, m/s 3rd gear, std.
1937-84
$ 4.25
#15 - OEM # 35440-38
Shifter clutch, 3rd & 4th
1938-84
$ 34.95
#15 - OEM # 35440-38
Shifter clutch, 3rd & 4th / Andrews
1938-84
$ 49.95
#16 - OEM # 37436-36
See first section


#1 - OEM # 1767W
Screw, shifter lever.
1965-79
$ .95

#2 - OEM #6750
Shims, +.007, shifter forks
1935-84
$ .95

#3 - OEM #6752
Shims, +.015, shifter forks
1935-84
$ .95

#4 - OEM #6754
Thrust washer , 3/32, shifter forks.
1935-E79
$ 1.15

#5 - OEM #11039
Retaining ring, starter collar.
1965-88
$ .50

#6 - OEM #33390-26
Spring, shifter gear & clutch
1941-79
$ 1 .95

#6A - OEM #33638-52
Bushing, shifter bracket.
OEM Only.
1952-69
$ 19.95

#6A - OEM #33638-70
Bushing, shifter bracket.
OEM Only.
1970-84
$ 19.95

#7 - OEM #34031-41
Shaft, shifter cam, foot shift.
1952-79
$ 18.95

#8 - OEM #34036-36
Seal, shifter cam shaft.
1937-79
$ .95

#8 - OEM #34036-80
Seal, shifter cam shaft & starter motor.
1980-84
$ .95

#9 - OEM #34050-36
Lock-screw, shift fork cam shaft.
1937-79
$ 1.95

#10 - OEM #34062-52
Cam, follower, for spring retainer.
1952-E84
$ 12.95

#11 - OEM #34064-52
Spring retainer, cam follower.
1952-79
$ 9.95

#12 - OEM #34066-52
Lock tab, cam follower..
1952-79
$ .95

#13 - OEM #34068-52A
Spring, cam follower
1952-82
$ 1.95

#14 - OEM #34140-36
Shaft, shifter forks.
1937-78
$ 17.50

#15 - OEM #34158-36
Shifter fork, mainshaft.
1936-84
$ 12.95

#16 - OEM #34159-36
Shifter fork, countershaft.
1936-84
$ 12.95

#17 - OEM #34165-36
Shifter finger, for bushing.
1936-76
$ 19.95

#18 - OEM #34168-39
Roller, shifter finger.
1941-79
$ 1.95

#18 - OEM #34168-52
Roller, shifter finger.
1979-84
$ 1.95

#19 - OEM #34175-36
Bushing, steel, shifter finger.
1937-76
$ 17.50

#20 - OEM #34179-33
Nut, shifter finger bushing.
1935-84
$ 2.95

#21 - OEM #34179-KIT
Nuts, & lock kit, shifter finger bushing
1935-84
$ 5.95

#22 - OEM #34180-33
Lock tab, shifter fork nuts.
1935-86
$ .95

 #23 - OEM #34182-76
Shifter finger , for shaft.
1976-79
$ 29.95

#24 - OEM #34186-76
Shaft, shifter forks.
1976-84
$ 14.95

#25 - OEM #34435-52
Bushing, shifter shaft , foot shift.
1941-78
$ 14.95

#26 - OEM #34447-52
Ratchet arm lever, chrome
1952-E79
$ 9.95

#26 - OEM #34447-74
Ratchet arm lever, chrome
1974-E79
$ 9.95

#27 - OEM #34477-53
Shifter pawl, left side.
1952-75
$ 14.50

#28 - OEM #34478-53
Shifter pawl, right side.
1952-75
$ 14.50

#29 - OEM #34478-75
Shifter pawl, center groove.
1952-75
$ 14.50


#30 - OEM #34482-53
Spring, shifter pawls.
1952-75
$ 1.25

#31 - OEM #34498-52
Bushing, pawl carrier.
1952-78
$ 12.95

#32 - OEM #34500-52A
Springs, pawl carrier.
1952-79
$ 1.25

#33 - OEM #34551-52
Shifter cover.
1952-79
$ 17.50

#34 - OEM #34552-52
Gasket, shifter cover.
1952-79
$ 1.25

#35 - OEM #34555-52
Cover, dust shield, chrome
1952-E79
$ 9.50

#35 - OEM #34555-74
Cover, dust shield, chrome
1974-E79
$ 9.50

#36 - OEM #34565-52
Gasket, adapter plate
1952-79
$ .75

#37 - OEM #34803-59
Shifter cover, ratchet lid, polished aluminum.
1959-79
$ 99.95

#38 - OEM #34824-36
Gasket, shifter cover.
1952-79
$ 1.25

#39 - 1-26-Kit
Ratchet arm & dust shield, chrome
1952-E79
$ 17.50

#39 - 1-27-Kit
Ratchet arm & dust shield, chrome
1974-E79
$ 17.50




#1 - OEM #515
Cotter pin, plated
$ .10

#2 - OEM #534
Cotter pin, plated
$ .10

#3 - OEM #6750
Shims, .007, shifter forks
1935-1984
$ .95

#4 - OEM #6752
Shims, .015, shifter forks
1935-1984
$ .95

#5 - OEM #6754
Thrust washer, 3/32",shifter forks
1935-E79
$ 1.25

#6- OEM #8872
Ball bearing, hand shift top.
1940-1976
$ .75

#7 - OEM #11036
Retaining ring,shifter fork shaft
1976-1986
$ .75

#8 - OEM #33390-26
Springs, shifter gear
1941-1979
$ 1.95

#9 - OEM #33870-51
Clevis, shifter rod, chrome
1937-1979
$ 10.95

#10 - OEM #33878-51
Clevis, bolt & nut, chrome
1937-1979
$ 7.95

#11 - OEM #34030-36
Shaft, shifter cam
1936-1976
$ 16.95

#12 - OEM #34036-36
Seal, shifter cam shaft
1937-1979
$ 1.25

#13 - OEM #34050-36
Lock screw, shift fork cam shaft
1937-1979
$ 1.95

#13A - OEM #34053-36
Cap screw, cam ball
1936-1976
$ 2.95

#14 - OEM #34057-36
Spring, plunger ball
1936-1976
$ 1.25

#15 - OEM #34158-36
Shifter fork, mainshaft
1936-1984
$ 10.95

#16 - OEM #34159-36
Shifter fork, countershaft
1936-1984
$ 10.95

#17 - OEM #34165-36
Shifter finger for bushing
1936-1976
$ 19.95

#18 - OEM #34168-39
Roller hat, shifter finger
1941-1979
$ 1.95

#19 - OEM #34175-36
Bushing, steel, shifter finger
1937-1976
$ 16.50

#20 - OEM #34179-KIT
Kit, nut & lock tab, shifter finger bushing
1935-1984
$ 6.95

#21 - OEM #34179-33
Nut, shifter finger bushing
1935-1984
$ 2.95

#22 - OEM #34180-33
Lock tab, shifter fork nuts
1935-1986
$ .95

#23 - OEM #34186-76
Shaft, shifter forks
1976-1984
$ 14.95

#24 - OEM #34430-36
Bushing, shifter shaft
1937-1976
$ 16.50

#25 - OEM #34824-36
Gasket, shifter cover
1936-E79
$ 1.95




#1 - OEM #33295-36
Gasket, starter side cover
1936-86
$ 1.25

#2 - OEM #34824-36
Gasket, shifter cover
1936-E79
$ 1.95

#3 - OEM #35230-39
Oil seal, mainshaft
1936-79
$ 4.95

#4 - OEM #35231-36
Gasket, cork, mainshaft oil seal
1936-77
$ .95

#5 - OEM #36025-36
Gasket, countershaft end cover
1936-64
$ .95

#6 - OEM #67141-36
Gasket, speedometer drive
1936-64
$ .95




#1 - OEM # 6016
Washer,steel.
11/32 x11/16 x 1/6 thick
1936-69
$ .50

#2 - OEM #2-819
Bolt kit, kick pedal
1936-69
$ 3.50

#3 - OEM # 7220
Lock washer, plated.
1933-79
$ .20

#4 - OEM #7911
Nut, kick starter shaft
1936-79
$ 2.95

#5 - OEM #7977
Nut, mainshaft. right side
1937-79
$ 2.95

#6 - OEM #35057-72
Kick arm, chrome
1972-76
$ 31.95

#7 - OEM #33076-37
Oil seal, kick starter shaft
1937-69
$ .95

#8 - OEM #33080-36
Washer, kick starter shaft
1937-69
$ 2.95

#9 - OEM #33082-16
Lock tab, C/S and starter crank
1936-79
$ .95

#10 - OEM #33085-36
Spring, kick starter return, chrome
1936-84
$ 11.95

#10A - OEM #33090-36
Stud, kick starter shaft spring
1936-69
$ 6.95

#11 - OEM #33096-54B
Shaft, kick starter
1936-69
$ 29.95

#12 - OEM #35150-59
Cover, starter spring, chrome
1937-69
$ 14.95

#13 - OEM #33175-16A
Kick starter pedal, w/ rubber
1936-84
$ 12.95

#13A - OEM #33175-16A
Kick starter pedal, bycycle styler
1936-84
$ 21.95

#14 - OEM #33182-63A
Kick starter pedal replacement rubber
1936-84
$ 6.95

#15 - OEM #33277-36A
Cover, kicker, polished,
1936-69
$ 54.95

#15 - OEM #33277-36A
Cover, kicker, chrome,
1936-69
$ 64.95

#16 - OEM #33288-37
Bushing/seal kit, kick cover
1937-84
$ 11.95

#17 - OEM #33295-36
Gasket, kick cover
1936-84
$ 1.25

#18 - OEM #33298-36
Stud, side cover , 1 3/8"
1937-64
$ 2.95

#18 - OEM #33298-65
Stud, side cover , 1 1/2"
1965-84
$ 2.95

#19 - OEM #33350-36
Starter crank gear, 24 tooth
1937-69
$ 39.95

#20 - OEM #33381-39
Starter clutch gear, mainshaft
1939-84
$ 27.95

#21 - OEM #33391-36
Spring, starter clutch gear
1937-69
$ 1.95

#22 - OEM #33393-50
Key, starter clutch
1937-86
$ 1.50

#23 - OEM #33396-39
Lock tab, starter clutch nut
1941-79
$ .95

#24 - OEM #33430-50
Starter gear, 16 tooth
1937-84
$ 31.95

#25 - OEM #33430-59
Starter gear, 14 tooth
1959-66
$ 31.95

#26 - OEM #33438-50
Bushing, starter ratchet gear
1931-69
$ 10.95

#26 - OEM #33438-50-OS
Bushing, starter ratchet gear,
O/S .928
1931-69
$ 10.95