Sorry so late in returning this. I haven't been on in a long time, life has been keeping me pretty busy.
I had 3.45 to start with the 5-speed. I was running a 28" tall tire with them and my gas mileage sucked. The 4.10's actually improved my MPG because they keep the truck in the proper power band. I never got to use 5th gear like you should be able to until the swap. I say go for it, it's not really a dramatic change from the 3.73's but you should notice a nice improvement.
James
I had 3.45 to start with the 5-speed. I was running a 28" tall tire with them and my gas mileage sucked. The 4.10's actually improved my MPG because they keep the truck in the proper power band. I never got to use 5th gear like you should be able to until the swap. I say go for it, it's not really a dramatic change from the 3.73's but you should notice a nice improvement.
James