I have a 97 tj with a 4" lift and 33" tires, 4.0 automatic' D35. I need some advice on what gears to go to in order to get some power back. This is my daily driver and I do not off road it. thanks for some help.
Since you don't offroad (yet) and this is for street/highway use, I'd go with 4.10 for 33" tires and your 3-speed automatic. Even if you start offroading 4.10 will still be a good ratio for your particular transmission.
You may come out cheaper if you can find a set of used stock D30/D35 axles out of a 4 cylinder TJ and swap both entire axles. Then you could sell yours and get some oney back. The 4 cylinders came with 4.10s.
Be very careful with the wife mod. Uninstallation can be extremely expensive. Wife mods have been known to take the Jeep and all other mods during the uninstall process. Also, make sure you service your wife mod properly as often as humanly possible. Wife mods not properly serviced may malfunction or uninstall themselves at any time.
Thanks guys. Now what all am I looking at replacing to regear to 410? Is this something I can do myself?
Not really unless you are willing to buy the special tools and are willing to spend time to learn how to do it right. It's a very tedious and exacting procedure to properly set up the relationship between the ring & pinion gears and if not done perfectly, the new gears will be ruined in short order.
It'd such a demanding job that if you go to a 4x4 shop with say 6 mechanics, odds are that only one or two will be trusted well enough to do their ring & pinion installations.