A common cross-type, single U-joint loses strength as the driveline angle increases. The installation of a suspension lift kit prompts the need for a heavy-duty, constant-velocity (CV) rear driveline.
The first adapter made by Advance Adapters was to hook a Muncie car four-speed to a Jeep Dana 18 transfer case. Back in the early ’60s the idea of a 1.9:1 First gear was cool; you could have a Jeep ...