![](/html/c4/c42c/c42cfcf41e8ef9566a9744d0f5e7d7efa4ee6379f07c5feaa51595bde666ea6d/bg1.png)
ADVANCE ADAPTERS INC. P/N: 712516
P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 1 OF 2
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 02-21-13
JEEP T18 4 SPEED TRANSMISSION TO
CHEVY V8 ENGINES
KIT CONSISTS OF:
No. Qty Part No. Description
1. 1 711509 ADAPTER CASTING
2. 1 716046 RETAINER
3. 1 716168 PILOT BUSHING
4. 4 723119 S.H.C.S. 5/16"-18 X 1-1/4"
6. 4 724329 H.H.C.S. 7/16"-14 x 5-1/2" LONG
7. 4 725002 1/2" LOCK WASHERS
8. 4 725008 H.H.C.S. 1/2"-13 x 1-1/2" LONG
INSTALLATION INSTRUCTIONS:
This transmission is almost always found in the 8 cylinder V8 engine applications that were used in Jeep wagons and
pickups between the years of 1973 and 1981. The transmission can be identified by the long aluminum spacer that is
approximately 5" long. This adapter kit will require the customer to drill 4 new holes in the existing Jeep adapter housing
for assembling it to the new Advance Adapters plate. The original transmission input shaft must stick out approximately
13" from the front of the transmission. When replacing the original V8 engine with the Chevy V8, driveshaft
modifications can usually be avoided.
1. Remove the existing Jeep adapter and inspect it to make sure that it is similar to the illustration on Page 2.
2. The adapter plate will need to have 4 holes drilled and counter bored for assembling it to the new adapter plate that
we have supplied. New bolts have been furnished for bolting the 2 adapters together. With the two adapters
assembled, the transmission input shaft should protrude approximately 6-1/4" from the face of the adapter.
3. Install the new pilot bushing into the Chevy crank and make sure that it has proper contact with the transmission
input shaft.
4. The following Chevy parts will be necessary:
OPTIONAL ITEMS:
Qty Part No. Description
1 716176 CLUTCH REL. ARM
Clutch Release Bearing - N1430
Clutch Release Lever- 716176
Pressure Plate
Clutch Disc with 1-1/8"-10 spline
Flywheel
Bellhousing with small index diameter of 4.686"
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components
will void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly
recommend that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components.
We recommend that a service manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are
normally available at automotive dealerships and parts stores.
![](/html/c4/c42c/c42cfcf41e8ef9566a9744d0f5e7d7efa4ee6379f07c5feaa51595bde666ea6d/bg2.png)
ADVANCE ADAPTERS INC. P/N: 712516
P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447 PAGE 2 OF 2
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 02-21-13
JEEP T18 4 SPEED TRANSMISSION TO
CHEVY V8 ENGINES
TRANSMISSION SIDE TO HAVE "C" BORE
"C" BORE
5.750"
6.000"
4.677" STOCK DIA.
EXISTING ADAPTER SPACER MUST BE MODIFIED
TO HAVE 4 NEW HOLES DRILLED COMPLETELY
THROUGH ADAPTER AND "C" BORED FOR HEX
HEAD BOLTS. SEE ILLUSTRATION ABOVE.
1.625" ADAPTER
THICKNESS
SECTION VIEW
DRILL 4 HOLES 1/2" IN DIA. THROUGH
"C" BORE 7/8" D x 1/2" DEEP
SPECIAL NOTE: When assembled, the shaft
must stick out 6-1/2" and not more than 1/4"
beyond new adapter. Trial fit to bellhousing to
check clutch & pilot bearing engagement.
T18 TRANSMISSION
STOCK BOLTS
4-PLACES
4 NEW BOLTS
.750"
1.312" DIA.
This retainer must be shortened as not to
interfere with the new retainer on the adapter.
STOCK INPUT SHAFT
13-1/8" TOTAL STICKOUT
STOCK RETAINER
4.825" - THIS LENGTH MAY VARY UP TO 1" AND NORÂMALLY THE SHAFT WILL CHANGE TO COMPENSATE
FOR DIFFERENCE. NEW LONGER BOLTS MAY NEED
TO BE PURCHASED.
THIS HUB MUST INDEX INTO THE BACK SIDE OF
A/A CASTING. THE DIAMETER SHOULD BE 4.677".
NEW BOLTS FURNISHED FOR BOLTING TO CHEVY
OR GM BELLHOUSING
P/N 716046 will bolt onto this casting and allow a
standard GM release bearing to be used.
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components will void
any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly recommend that
you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components. We recommend that a service
manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are normally available at automotive dealerships
and parts stores.
1973-74 T18C-8 Cylinder Stock Engines
1979 T18- 8 Cylinder Stock Engines
1980-81 T18-8 Cylinder Stock Engines