I have a 1996 Prizm, and it has a 10 Gallon tank. Yours is most likely the same.
1 1/4"
36mm
For my 94 Geo Prizm it's a 30mm.
32mm
36mm
look on the bottom of the axle...and there should be a metal tag saying what size and ratio that axle is
The 1996 uses a 30mm nut.
Vehicles with front wheel drive have a straight rear axle meaning there is no gear housing in the rear axle. Vehicles that are rear wheel drive have a gear box in the middle of the rear axle to change the rotation of a drive shaft to turn the rear axle. If you look under a full size pick up truck rear axle you will see a large gear box (typically referred to as a pumpkin) in the middle area of the axle. That is the gear box differential.
1 1/4
The door speakers in Geo Prizms From 1993-1997 and possibly newer are 4in. and the rear speakers are 6.5in.
36mm