Originally Posted by lmsport
The Jericos I have are stamped with the gear ratios, on the topside of the main case at the bellhousing end.
Hmm, I've got a DR4 box and there is nothing stamped there on it. Mine box has a 3.08 1st gear to be paired with a 3.25 rear axle, Spec stage III clutch, and an aluminum flywheel. This will all go in a lightweight, high torque street combination. In your case, I can "feel" several potential problem areas. Car weight (?), clutch/flywheel (?), gearing (?) and lack of low-end torque.