In a 1985 Toyota pickup, would one need to replace the clutch and flywheel if you were to install 4.88 gears front and rear to accommodate the increased torque going to the wheels? Apologies if what I am asking doesn't make sense and feel free to correct me in your reply. Also, Happy Thanksgiving everyone, have a great day and enjoy some good food.
No, you would not have to replace the clutch and flywheel. They have nothing to do with diff gears.
If the clutch disc is in good condition, the extra torque you get from the lower R&Ps should be fine and feel good.
Happy Thanksgiving to you too.