Since the G52 was made for a bench seat truck, and the W56 was made for a bucket seat truck, the trans and t/case handles will be about 2" forward.
You will need the G52 trans handle as well, it is a difference style and will be aiming toward the passenger. (Your W56 trans handle aims toward the driver). So your factory boot will not work, unless you find a 89-95' G58, W56, or R150F trans handle, or cut and weld what you have to make it fit in the factory boot.
Both trans are 25" long
So If I have an 8422r with bucketseats, which trans do I have g52 or w56?