3.61 rings a bell. All three of my '95cse fpt and '94cde and '94cs have the same gear box with final drive 3.61:1.
The '95 cse is stock, FM-57101. The '94 cs was aso stock, FM-57101. Except I pulled the drivetrain in the dark last week and broke the gear rod. Replaced the gear box with another FM-57101. The '94cde I converted to 5 speed has a donor from a '95 lpt. The gear box has designation FM-57001. Same final drive except it has a smaller driver.