* Cab style: Regular cab, extended cab, or crew cab Silverados will all have different driveshaft lengths.
* Bed length: Short bed, standard bed, or long bed trucks will also have different driveshaft lengths.
* Engine and transmission: While less impactful than cab and bed length, different drivetrain combinations might slightly alter the driveshaft length.
* 4x2 vs. 4x4: Four-wheel-drive trucks will have a longer driveshaft than their two-wheel-drive counterparts.
To find the correct driveshaft length for *your* 1994 Silverado, you need to identify your specific truck's configuration (cab style, bed length, drivetrain) and then consult a parts catalog or a mechanic specializing in drivetrains. You can also measure the existing driveshaft if it's accessible, but remember that is only helpful for replacement if you are keeping the same drivetrain configuration.
