If your more concerned about having power on the highway , especially if you pull a trailer you need to go to 5.29's. I hear people say they have 5.29's and they can only run 70mph :bull crap: , well it's because their motor does not have enough power to go any faster NOT because they are over-revving the engine. I can run 65mph in 3rd gear without hitting the redline.
Here's a good way to tell if you need a lower gear, if you can run faster (top speed) in 4th gear than you can in 5th it's too high.
Toyota engines are designed to cruise above 3000 rpm's. You'll have more power and get better gas mileage turning a few more R's than you will if your lugging the moter trying to keep it up to speed. I can easily run about 85 with 5.29's and 35" BFG m/t's , but it runs out of power way before it redline's the motor. I had 4.88's and 33's on my 83' with a highly modified 22R and it would run over 100mph.
Everyone says to just go with dual cases and I agree that the dual case is the best thing you can do for OFF-road , but it won't help you a bit in your situation.
This will alway's be a heated discussion and everyone has their own opinion so the best thing you can do is find someone who has 5.29's , drive their truck and see for yourself.
