ADVANCE ADAPTERS INC. P/N: 712528
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: 01-29-08
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.
KIT CONSISTS OF:
No. Qty Part No. Description
1. 1 711528 ADAPTER PLATE
2. 1 716046 BEARING RETAINER
3. 1 716158 PILOT BUSHING (EXT. W/.670" I.D.)
4. 1 716732 SEAL (National #471795)
5. 4 723119 5/16"-18 x 1-3/4" S.H.C.S.
6. 2 724328 7/16"-14 x 1-1/4" H.H.C.S.
7. 2 725026 1/2"-13 x 1-1/4" F.H.C.S.
8. 2 725041 1/2"-13 x 2-1/4" S.H.C.S.
9. 1 JP001 JEEP INSTRUCTION MANUAL
JEEP T18 4 SPEED TO
CHEVY V8 1976-80 (7-1/2" INPUT STICKOUT)
INSTALLATION INSTRUCTIONS:
The input shaft of the stock Jeep 4 speed found in CJ vehicles has a clutch drive spline of 1-1/16"-10. Since the input
shaft of the Jeep 4 speed transmission is irregular to a stock shaft, we have provided a special pilot bushing that will
need to be installed into the crank of the Chevy motor. Be sure the contact is correct and that the shaft tip reaches the
bushing. Also, make sure the splines on the input shaft engage with the clutch disc splines. In some cases, the stock
input shaft tip reaches too far into the bellhousing causing the tip to bottom out in the crank. Make sure your transmission
has sufficient clearance. If necessary, a portion of the tip can be removed for clearance.
STEP 1. Install seal into adapter housing so the open side is towards the transmission.
STEP 2. Bolt retainer onto front of plate using the four (4) bolts provided.
STEP 3. Install the plate and retainer onto the Chevy bellhousing making sure the diameter of the retainer indexes into
the bellhousing bore.
If a 5.125" bellhousing is going to be used, P/N 716051 will need to be substituted.
STEP 4. Using the flat head socket cap screw, bolt the plate to the bellhousing. After this is in place, it may be
necessary to mark the flat head portion of the bolt for grinding and providing clearance for bolt that overlaps.
STEP 5. Before bolting the bellhousing assembly to your T18, you must remove the stock front bearing retainer. Clean
the T18 transmission surface so that it is free of debris. Set the bellhousing and adapter onto the transmission.
The top two holes of the transmission will require a slight elongation so that a bolt can be used
from the transmission through the plate and into the bellhousing.
Once elongated, use the bolts
provided (1/2"-13 x 2-1/4") to secure the plate on the top, and P/N 724328 on the bottom holes. Apply a thin
layer of RTV Blue Silicone to the adapter plate surface. This will eliminate any possible oil leakage between
the plate and transmission.
Bellhousing Side Transmission Side
These counter-
sunk holes are
not used.
Note:
Some Jeep T18s from 1977 to 1979 had
an input shaft with a pilot tip measuring 2"
long. These transmissions cannot be
used due to the lack of clutch spline
engagement. These transmissions can
use our full bellhousing P/N 712549.
(2 pages)
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