You came to the right place for Toyota Transfer case answers.
Assuming your friend's truck is a V6, yes, the setup will work in your truck, but you will need to do two things first:
1) Remove the 30-4GT front adapter plate from the front of his Crawl Box. This is only needed to adapter the Crawl Box to his V6 transmission (which is a R150F, not the R151F).
2) Exchange the 23-spline input gear in his Crawl box with a 21-spline input gear.
After this, it is a direct bolt on application.
Please see our FAQ regarding Toyota Gear Drive Transfer Cases:
The Marlin Crawler Gear Drive Transfer Case BibleRegards,
BigMike
