The purpose of New Product Information is to document, important product changes whichoccur either model year-to-model year or interim model year.
Changes may include one or more of the following items:
Specification changesNew sealants and/or adhesivesDisassembly and assembly procedure revisionsMechanical and diagnostic procedure revisionsNew special tools requiredInterim model year design changesA component comparison from the previous model year2008 Mid-Model Intermediate Drive Shaft (IDS) Seal UpdateThe IDS seal design was updated in the mid-model year 2008 Getrag 760/790 TransferCases.
Replacing the IDS seal with the correct seal requires identification between firstand second design transfer cases. Refer to the table below.
Transfer Case P/N | 24244573 | 24246665 |
Original IDS Seal P/N | 19132951 / 19178698 | 19206322 |
Original Seal Color | Yellow or Blue | Green |
Replacement Service Seal | 19180998 | 19206322 |
Service Seal Color | Green | Green |
VIN Breakpoint: Chevrolet, Pontiac – 12/20/2007 | — | 2CNDL037686075818 |
VIN Breakpoint: Saturn – 1/2/2008 | — | 3GSDL43N58S631116 |
First design, pre-breakpoint seals were built with IDS seals that have yellow or blueshaft guides and are replaced with unique, short neck seals-(1) with a green shaftguide.
Second design, post-breakpoint seals were built with IDS seals that have green shaftguides-(1) and are serviced with unique, long neck seals-(2) with green shaft guides.
Seal DesignSecond design IDS seals have sealing lips extended about 5-mm (0.20-in) from the firstdesign sealing location.
Second design IDS seals are not compatible with first design transfer cases. Installinga second design seal in a first design transfer case will create a transmission fluidleak due to interference with the input shaft.
Seal InstallationInstalling the replacement seal to the proper depth is critical. Use DT-48078 inner drive shaft seal installer with J-8092 driver handle to install the seal 2.8-mm (0.11-in)-(a) from the end of the input shaft. Refer toFront Drive Axle Inner Shaft Seal Replacement.
Scrub Radius Description Wheels
Ideally, the scrub radius is as small as possible. Normally,the SAI angle and the centerline of the tire and the wheelintersect below the road surface, causing a positive scrub radius.With struts, the SAI angle is much larger than the long arm/shortarm type of suspension. This allows the SAI angle t ...