Thank you for the info, the truck I am planing on doing this too is an 81 and the one I am stealing parts from is an 82. I am by no means a Toyota expert but was thinking that they would be the same. the stock Tcase should be a top shift correct? will I be able to tell before yanking the case out of the truck, if not can it be changed over to top shift?
So I will still get a super slow crawl by adding the second Tcase but even more so if I change the gear ratio in the second case to the 4:1 gears...