Advance Adapters 50-9600 - Manual (Page 2)

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.
6.75" stickout on a 2WD transmission. the shaft will need to be
cut or shortend to 3.80 cut off
This casting is designed for the stock 4WD output shaft. The
6L80 shafts are 32spline and the 6L90 is a 29 spline.
2008 2WD 6L80 output shaft has, approximately 7" of shaft
stick out and 6" of splines. This shaft could be cut and the
casting used at the 3.7" length.
Stock 4WD output shaft with 1.62" of spline. This spline
should be recessed from the casting face .300" once the
casting is installed.
Shaft on the right is a fixed yoke 2WD trans. This shaft must
be modified to work with an Atlas.
Installation:
The new casting is designed to use the factory bolts to fasten the adapter to the transmission. We
have included two sets of transfer case holes for the Atlas to offer multiple rotation options for both the right
and left drop case configurations. The 7/16 bolts included are for the factory GM rubber support mount. Your
stock crossmember will need to be modified to connect to the GM rubber support
On 2WD transmissions the holes located at 12 and 6
o’clock need to be plugged with factory soft plugs.
The output shaft needs to have a seal installed.
6L80/6L90 TO ATLAS ADAPTER
ADVANCE ADAPTERS INC. P/N: 50-9600
P.O. Box 247, 4320 Aerotech Center Way Old Part No:
Paso Robles, CA 93447 PAGE 2 OF 2
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 07-24-14