You can change the rear end of a 1988 Suzuki Samurai to Posi-trac by opening the differential and removing the existing ring and pinion gears. The Posi-trac assembly is then install and the gears put back in place.
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8.5 3.73 Positrac
You don't.
like any other one take the drive shaft off and change it
No, not originally. Many 'resto-mods' install bigger rear ends with posi-traction, however. If it's a car being billed as 'all original', it will not have posi.
It is a A500 standard 4 spd with OD feature usually and the rear diff is a 8.25 limited slip (positrac)
A complete rear end? If so, any 70-81 Firebird, Trans Am or Camaro. Keep a couple things in mind. ALL Trans Ams were equipped with a positrac....but the Z28 may or may not be. Also, a lot of 79-81 Trans Ams will have disc brake rear ends. You'd need to change your master cylinder and proportioning valve if you don't have a disc brake rear now.
Passenger side, rear of the engine
In 1988 there was a body style change , if the 1988 is the new body style then Yes you can.
Download the FREE Suzuki Samurai Shop Manual from http://www.suzukiinfo.com/ or visit zukikrawlers.com zn
Download the FREE Suzuki Samurai Shop Manual from http://www.suzukiinfo.com/ zn
It is rentable at a lot of parts stores.They should show you how to use it.