This all-range overdrive is a great addition to any of the early model Jeeps from 1940 to 1971, and I.H. Scouts 1961-65 with the Model 18 transfer case. The addition of this 25% overdrive unit offers you the needed gearing that the early Jeeps were lacking. The Saturn overdrive is a fully synchronized unit that can be shifted-on-the-fly. When installing the unit, only minor modifications are required to the floorboard for the shifter. The Saturn is built to handle up to 300 ft./lbs. of torque, well within the range of a stock V8. If you are interested in a lower gear set for your Dana 18 transfer case, but would like to retain your overdrive, we offer a Saturn bowl gear that will work with the gear reduction kits currently on the market. If a low gear set is purchased, we have available a Saturn overdrive less the bowl gear.
The Saturn is the original unit designed and developed by Warn Industries. Advance Adapters purchased the tooling, engineering data, and inventory from Warn in 1991. The components we manufacture today are the same as the old Warn components. We have incorporated a few upgrades on the units we sell today, but these units are all still interchangeable with the original Warn overdrive. (Note: The Saturn is not compatible with the Husky unit.)
APPLICATION INFORMATION: To select the proper overdrive model, find your vehicle model and transmission type listed below. The Saturn overdrive will only fit the vehicles listed that have a Dana 18 transfer case.
Part # Description Vehicle Models
915670 - 26T x 6 spline M38, M38-A1, CJ2A, CJ3A, some CJ3B, 4-63 4X4, 4-73 4X4
915672 - 29T x 6 spline CJ5, CJ5A, CJ6, CJ6A,4-74 4X4, some CJ3B, 6-266, 6-230
915674 - 29T X 10 spline (T14 trans) CJ5, CJ5A, CJ6, CJ6A
915678 - 27T X 6 spline
915676 - 31T X 10 spline (Mitsubishi Jeep only)
915677 - 6 spline overdrive (minus the bowl gear) designed for the Tera Low low gear sets.
915677-10 - 10 spline overdrive (minus the bowl gear) designed for the Tera Low low gear sets.
SHIFTER APPLICATION: Shifters are sold separately. Part # Description 920000 T90 Dual Handle T/C 920001 T90 Single Handle T/C 920003 Universal Saturn Shifter 920013 T14 Shifter
SATURN PARTS LIST:
PARTQTYDESCRIPTION
NO.REQ.
911043-HEX NUT
911067-BRASS SYNCHRO-RING
911069-SYNCHRO DOG
911071-SYNCHRO SPRING
911078-SHIFTER SLIDER RING
911090-PIN, PLANETARY GEAR
911091-NEEDLE BEARING
911092-26-TOOTH GEAR
911093-29-TOOTH GEAR
911094-THRUST RACE
911095-THRUST WASHER
911096-31-TOOTH GEAR
911097-27-TOOTH GEAR
911098-TERA LOW BOWL GEAR
911099-NEEDLE BEARING
911100-THRUST WASHER
911103-SHIFTER FORK
911105-SPRING, SHIFT DETENT
911106-SHIFT DETENT BALL
911107-SHIFT RAIL SEAL NEW STYLE
911108-SHIFT RAIL O-RING SEAL
911109-SPACER WASHER
911130-GASKET CASE
911131-GASKET BODY
911133-OIL SCOOP
911137-O-RING
911143-NEEDLE BEARING
911147-RETAINER RING SUN GEAR BEARING
911236-SPECIAL SNAP RING
911313-ROLLER BEARING
911316-THRUST WASHER
911326-BEARING CAP
911328-CASE COVER
911330-6 SPLINE SHAFT
911334-SPACER WASHER
911336-GASKET CAP
911337-STATIONARY MEMBER
911338-14-TOOTH GEAR
911341-THRUST WASHER
911342-NEEDLE BEARING STRIP
911346-DRIVE MEMBER
911731-DRIVE NUT
911731-S- SPECIAL METRIC DRIVE NUT
911806-LOCKWASHER
911838-RETAINER RING
912388-ROLL PIN
913296-SHIFTER SHAFT
913297-SHIFTER GUIDE PIN
914231-SOCKET HEAD SCREWS 6-32 X 1/4
914232-PLANET HUB ONLY-6 SPLINE
914384-PLANET HUB ONLY-10 SPLINE (T14)
914384-S- PLANET HUB ONLY SPECIAL 10 SPL.
914862-CAP SCREW SHIFTER
915132-COTTER PIN
915204-SATURN CASE
916779-SNAP RING/PLAN HUB
919866-RETAINING RING PLANET PINS
919869-RING OIL SLINGER
COMPONENT ASSEMBLY KITS
911349- SEAL AND GASKET KIT
KIT INCLUDES ALL GASKET SEALS & SEAL WASHERS
912821- THRUST BEARING KIT
KIT INCLUDES: (2) 911099, (2) 911094, (2) 911100
911339 - PLANETARY GEAR SETS
KIT INCLUDES: (2) 911341, (2) 911342, (1) 911316, (1) 911090, (1) 911338,
911362- SPLINED SHAFT KIT
KIT INCLUDES:(1) 911043, (1) 915132, (1) 911143, (1) 911147, (1) 911330
911317- SYNCHRO RING SERVICE KIT
KIT INCLUDES:(2) 911067, (3) 911069, (3) 911071
911318- SYNCHRO ASSEMBLY KIT
KIT INCLUDES:(2) 911067, (3) 911069, (3) 911071, (1) 911078, (1) 911346
911223 - 26 TOOTH PLANETARY HSG. KIT
KIT INCLUDES:(1) 911092, (2) 911091, (1) 919869
911224 - 29 TOOTH PLANETARY HSG. KIT
KIT INCLUDES:(1) 911093, (2) 911091,(1) 919869
911837 - PLANETARY ASSEMBLY (6 SPL.)
KIT INCLUDES:(1) 914232, (4) 911090, (1) 911095, (1) 911137, (4) 911316, (4) 911338, (8) 911341, (8) 911342, (1) 911731, (2) 919866, (1) 916779, (1) 911143
911839 - PLANETARY ASSY. (T14 10 SPL.)
KIT INCLUDES:(1) 914384, (4) 911090, (1) 911095, (1) 911137, (4) 911316, (4) 911338, (8) 911341, (8) 911342, (1) 911731, (2) 919866, (1) 916779, (1) 911143
911840 - PLANETARY ASSY. (METRIC 10 SPL.)
KIT INCLUDES:(1) 914384-S, (4) 911090, (1) 911095, (1) 911137, (4) 911316, (4) 911338, (8) 911341, (8) 911342, (1) 911731, (2) 919866, (1) 916779, (1) 911143