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An Index to Service Information for 1937-42 (15th->20th Series) Packards

1937-42 (15th->20th Series) - TRANSMISSION & OVERDRIVE

SubjectApplicationDocument
Adjustment, Transmission
direct/second shift fork travel - finger/boss clearance
1700-1-2-3-5
Bearings, Care of Ball and Roller
installation/removal damage - proper support
(all models)
Bearings, Rough Transmission Driving Shaft
1st/2nd gear service assemblies - lubricate prior to install
17th-54th
Crank, Transmission Checking
new special tool suggestion - fabricate locally
(not specified)
Drain Plug Wrench - Special Tools
new required tools- transmission and Econo-Drive
18th
Drive Shafts, Dont Fill...with Grease
noise deadening - premature u-joint failure
(not specified)
Flange Nuts, Universal Joint
new special tool - thin-walled socket
120C-138CD;
115C;
1600-1-2
Gasket Sets, Transmission
parts available for service - part reference
120-138CD;
115C;
1600-1-2;
1700-1-2-3-5;
18th-22nd
Gasket Sets, Transmission and Overdrive
parts available for service - part reference
17th-22nd
Gear Clash, Second Speed
synchronizer operation - bearing lock ring burrs
17th-54th
Gear Shift - Tool Number Correction
linkage adjustment - steering aligning gauge
19th
Gear Shift
stiff, difficult - linkage alignment/adjustment
19th
Gear Shift Anti-Rattler
additional instructions - clearing steering gear dowel
17th-18th
Gear Shift Anti-Rattler
rubber anti-rattle button - 19th Series retrofit
17th-18th
Gear Shift Lever Rattle
bell crank - lubrication causes excessive movement
17th
Gear Shift Levers (Handishift)
alignment holes - lock rod for service safety
1700-1-2-3-5
Gear Shift Linkage
shift lever drag - loose interlock block, levers, forks
17th-20th
Gear Shifter Forks
superseded design - larger pins/holes
17th-20th
Gear Shifter Lever Rattle
column production changes - anti-rattle spring/plug
1700-1-2-3-5
Gear Shifting in Cold Weather
trouble - use of seasonal oils
(not specified)
Gear Shifts, Dont Fall Down on Fixing
sticking in gear - summary of checks/adjustments
17th-20th
Gears, Damage to Transmission...from Shifting
gear clash - consequences
(not specified)
Gearshift Still Sticks, That
lost motion reiterated - new forged column levers
18th-21st
Gearshift Still Sticks, That
lost motion, levers/interlock - column lever clearance
18th-20th; (21st)
Interlock, Transmission Cover
shift interlock block loose/worn - new service kit
17th-20th
Linkage, Handishift
sticking in gear - interlock block, linkage assist spring
19th-20th
Linkage, Lost Motion in Handishift
sticking in low, shifting to neutral - worn rubber grommets, new steel bushings
17th
Locking in Gear - see also:
Gear Shift (Gearshift)
Interlock
Linkage
Lubricant
Sticking in Gear
--
--
Locking in Gear
sticking in low, shifting to neutral - clutch free play, shift lever clearance
18th-19th
Locking in Gear
sticking in low, shifting to neutral - spring washer eliminated, new shims for lever clearance
18th-19th
Lubricant, Transmission
seasonal oils - viscosity issues
(all models)
Lubricants, Transmission
warm weather, bearing noise - new Kendall 400 oil
(not specified)
Lubrication, Transmission - Econo-Drive
summer/winter - viscosity issues, draining/filling
17th;
(18th)
Motor Period
torsional disturbance - clutch/transmission jazz
(not specified)
Oil Seals
damage, leaks - special tools, proper use
19th-24th
Overdrive: Assemblies, Transmission and...
no longer available - replace with standard transmission
1703-5
Overdrive: Bearing Pre-Load, Econo-Drive
new spring washer, spacer - identification, installation
1700-1-2-3-5
Overdrive: Bearing Preload, Econo-Drive
preload washers - cotter pins eliminated
1700-1-2-3-5
Overdrive: Cars, Econo-Drive
new preload parts - first use, unit serial numbers
1700-1-2-3-5
Overdrive: Control, Econo-Drive
adjusted too short - minimum knob/stop clearance
17th
Overdrive: Cut-In Speeds, Econo-Drive
higher speed governor, special service unit - part reference
18th
Overdrive: Electromatic, Aero-Drive with
delayed shift, second gear - proper operation
19th
Overdrive: Failure To Get Into...
checks - corrections
17th-20th
Overdrive: Flange Nuts, Special Tool to Help Mechanic Tighten or Loosen Universal Joint
new holding tool
17th-22nd;
(23rd-25th)
Overdrive: Free Wheeling Clutch
roller clutch inoperative - springs reversed
1700-1-1A-2-3-3A-5;
1800-1-1A;
1900-1-1A;
1951;
2000-01-10-11;
(2100-01-11)
Overdrive: Governor Switch, Econo-Drive
difficulty getting into reverse - lockout knob check for inoperative switch
18th
Overdrive: Governor Switch, Econo-Drive
flickering dash light, clicking solenoid - switch shaft worm gear, transmission driving gear
18th
Overdrive: Governor Switch, Econo-Drive
locked out of reverse, switch mechanism binding - realign guide pin
18th
Overdrive: Governor Switch, Econo-Drive
no reverse - guide pin adjustment reiterated
18th
Overdrive: Governor Wrench
new special tool - R-11 and older
18th-23rd
Overdrive: Governor Wrench, Econo-Drive
short wrench - clears X-member
18th;
(19th-22nd)
Overdrive: Governor, Aero-Drive
19th Series switch cover supersedes 18th - use of 18th Series governors
18th-19th
Overdrive: Governors, Econo-Drive
improper operation - new switch cover
18th-19th
Overdrive: Ignition Cut Out
Econo-Drive, decelerating - relay adjustment
18th-20th;
(21st)
Overdrive: Indicator Light, Aero-Drive
always on - headlamp resistance unit bent. grounded
19th (exc. 1951)
Overdrive: Indicator Light, Aero-Drive
on, standing - fuse check
19th-20th
Overdrive: Installation, Economy-Drive
field upgrade not cost-effective
17th
Overdrive: Kickdown Switch, Econo-Drive
shorting against starter - incorrectly mounted
1803-3A-4-5-6-7-8
Overdrive: Lockout Sleeve
no reverse - sleeve operational checks, lubricant viscosity
17th-20th
Overdrive: Lubrication, Econo-Drive
changes in pilot bearing, thrust washer - hypoid oil permitted, unit identification
1700-1-2-3-5
Overdrive: Lubrication, Econo-Drive
hypoid oil approved - new plugs/tag
1700-1-2-3-5
Overdrive: Lubrication, Transmission - Econo-Drive
summer/winter - viscosity issues
17th;
(18th)
Overdrive: Lubrication, Transmission and...
operating issues, cold - lubricant recommendations
17th-20th
Overdrive: Operating the Econo-Drive
proper engagement point - wear, noise benefits
17th;
(18th)
Overdrive: Parking in Gear
Econo-Drive, on hills - use reverse gear only
1700-1-2-3-5
Overdrive: Parts, Econo-Drive
parts reference - illustrated
17th
Overdrive: Rear Bearings, Econo-Drive - Correction
film supplement - race reference
1700-1-2-3-5
Overdrive: Rear Bearings, Econo-Drive
production change, larger bearing - revised service procedure
1700-1-2-3-5
Overdrive: Rear Bearings, Economy-Drive - Renewing and Preloading
service procedure
1700-1-2-3-5
Overdrive: Reverse Lock-Out Switch, Econo-Drive
new plunger switch, relay, wiring, operation - partial or full installation
1700-1-2
Overdrive: Sluggish Engagement (or Clunks)
insufficient friction, stationary gear balk ring/plate - R-9
18th-21st
(22nd)
Overdrive: Snap-Ring Pliers, Econo-Drive
new special tool - driving shaft locking rings
17th;
(18th-22nd)
Overdrive: Solenoid Installation, Econo-Drive
solenoid failure - spacer inverted
18th-20th;
(21st)
Overdrive: Solenoid Repair
contact replacement reiterated - solenoid shipment restricted
18th-20th;
(21st)
Overdrive: Solenoid Repair
overdrive inoperative, burnt contacts - new parts kit, installation
18th-20th;
(21st)
Overdrive: Solenoid, Waterproofing
road splash - seal housing/cover, terminals with Permatex
17th-20th;
(21st)
Overdrive: Transmission Case Cover
compatible with OD units - requires lockout plunger
17th
Overdrive: Transmission Jazz
rattle/buzz, engine period - new type clutch thrust washer, driven plate
1801
Overdrive: Wiring Diagram
schematic - circuit operation, troubleshooting
18th-20th
Overdrive: Wiring Diagram, Aero-Drive
new model information
20th
Servicing the Transmission
overhaul procedure
17th-21st
Shifter Lever Interference
interference with rear motor support - rework existing stock, superseded part
1703-3A-5;
1803-3A-4-5-6-7-8;
1903-3A-4-5-6-7-8;
2003-04-05-06-07-08-23-55;
2103-06-26
Shop Manual Corrections (1938-1939)
transmission oil capacity
1603-4-5;
1703-3A-5
Sticking in Low Gear
loose detent block, forks, levers, rods - insufficient clutch clearance
17th-20th
Transmission Service Units
part number reference - supersedes parts book
120-138CD;
115C;
1600-1-1A-1D-2;
1700-1-1A-2-3-3A-5;
18th;
1900-1-1A-3-3A-4-5-6-7-8
Transmissions
noisy, coasting/light throttle - heavier oil, new type clutch driven plate
1600
Transmissions
parts shortage - substitute assemblies, speedometer cable
1800-3-3A-4-5-6-7-8;
1903-3A-4-5-6-7-8;
2003-06;
?2004-05-07-08?;
2103-06
Transmissions
superseded - speedometer cable serviced separately
20th?
Transmissions and Parts Now Available
1st/2nd speed driving shaft - back in stock
1951;
2000-01-03-06-10-11;
21st
Transmissions and Parts Now Available
assemblies, shafts, cluster gear - back in stock
1951;
2000-01-03-06-10-11;
2100-01-11-30
Transmissions and Parts Now Available
clutch (input) shaft - back in stock
1700-1-1A-2;
1800-1-1A;
1900-1-1A;
1951;
2000-01-03-06-10-11;
2100-01-11-30
Transmissions and Parts Now Available
countershaft cluster gear - back in stock
120-138CD;
115C;
1600-1-1A-1D-2
Transmissions, Service
shipped dry, inspect syncromesh balls/springs - new special tool
(not specified)

SC = Service Counselor
SL = Service Letter
STB = Service Technical Bulletin
SSB = Studebaker Service Bulletin

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