Advance Adapters SM465 to Jeep D18/20 Adapter
Nov 22, 2007
Classic Jeep owners now have another transmission option. Advance Adapters' new GM SM465 to Jeep Dana 18/20 transfer case adapter lets them take advantage of the popular GM 4-speed transmission with its very low 6.55:1 1st gear. The adapter plate is very short, making it suitable for CJ7 and CJ5 owners who are trying to retain a reasonably long rear driveshaft length.
Advance Adapters hasn't fallen 'short' on this one - a new shorty GM SM465 to Jeep Dana 18/20 adapter kit. At 7/8" length, their adapter kit is the shortest on the market, providing a combined transmission-and-adapter length of only 12-7/8".
They didn't stop there. Their adapter is manufacture from a Blanchard ground steel plate and features three transfer case clocking options. These clocking options are 20, 33, and 40 degree intervals. The clocking options will allow a fine-tune conversion to maximize clearance between the transmission and yoke. To obtain the adapter length of 7/8" they had to manufacture a new SM465 main shaft. This new main shaft fits 6 spline drive gears only.
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