531
CLASSIC
4-Speed Big Twin Transmission
1936-69 Big Twin Mainshafts are made to factory prints for 4
speed models.
VT No. Length Sifton Andrews OEM
Years
17-0139 11³⁄₄” 17-0223 17-8500 35039-50 1936-64
17-0140 12”
17-0224 17-8501 35039-65 1965-69
17-0141 12¹⁄₂” 17-0142 17-8502 35039-70B 1970-79
12⁷⁄₁₆”
17-0144
35039-80 L1980-E1984
Big Twin Countershaft/Mainshaft
Rollers set of 88 used.
88 Pack 100 Pack OEM Size
17-0145 12-4576 9084 Standard
17-0146
9085 .0004
12-4608
.0006
17-0148
.0010
Replacement Big Twin Transmission Bushings for 1941-85
3 and 4-Speed.
VT No.
OEM
Application
10-0729 35789-36 Countershaft Low 1936-85
10-0734 35789-36 As Above, Jims
10-0730 35791-36 Countershaft Second
10-0735 35791-36 As Above, Jims
10-0727 35094-65 Main Drive Gear 1941-85
10-2548 35094-65 As Above Motor Shop
10-2487
As Above Andrews Gear
10-0728 35322-38 Mainshaft Second and Third
Handshift Models Only
10-0738 35322-38 As Above, Jims
Main Drive Gear. V-Twin and Sifton brands include bushing
and seal installed. Andrews brand includes installed bushing
only. Order seal separately for Andrews brand.
VT No.
OEM
Year
Brand
17-0194 35065-65B 1941-76
V-Twin
17-8231 35065-65B 1941-76
Andrews
17-0598 35065-65B 1941-76
Sifton
17-0195 35067-77 1977-85
V-Twin
17-8232
35067-77
1977-85
Andrews with
35067-84
O-Ring Groove
17-0352
As Above
1977-85
Sifton
17-0599 35067-77 1977-85
Replica
10-0727 35094-65 Bushing
OE
10-2548 35094-65 Bushing
V-Twin
10-2487* 35094-65 Bushing
Andrews
14-0106
12013A
All
Gear Seal, 5 pack
*Note: Bushing to fit Andrews 4th gear only.
17-0352,
17-8232
Needle Bearings for Big Twin feature full compli-
ment roller design.j
VT No. Koyo
OEM
Type/Use
12-0397 12-0316
9058
1958-99, Cam
—
12-0326
35690-54 Closed, Transmission
12-0396 12-0327
35961-52 Open, Transmission
12-0398 12-0300
8905
MD Gear, 1977-81
12-0399 12-0349
8906
MD Gear, 1982-85
12-0316
17-0194
17-0545
Refer to
opposite
page
for the
parts
listing.
Main Drive Gear Seal Kit for 1941-76 Big Twin.
Includes case race, seal, nut and lock tab.
VT No. 17-0693
Note the bearing surface outside diameter for main drive gear
bearings do not interchange.
Outside Diameter
Year
Type
1.6290
1941-76
Loose
Rollers
1.6235
1977-85
Full
Complement
Oil Deflector Main Drive Gear Kit. Includes all
parts pictured to fit 1936-64 3 and 4-Speed mod-
els. Replaces 35211-36 lock nut.
VT No. 17-0204
10-2548
10-0729
10-0730
Note the bearing surface outside diameter for main drive gear
bearings do not interchange.