Thank You,but what would it do with the stock  t-cases anything would it make a difference or would it be a waste of my time?idont no thats why iam asking do i need to do gearing?or what :-/
I suggest that you contact a Suzuki club or owners near you. Look into Suzuki Samurai specific sites such as Izook site, pirates4x4, among others off the top of my head. There are also several group lists which you can join for better info. Do a search on yahoo groups. I'm also on a suzuki4x4 off the topica.com site. This is mostly central US, but there are many others on it.
For a Sami, swapping in a 1.6l 8v is highly recommended (although the 1.3l could be mod'd with little trouble for better output numbers). The tranny is personal choice. Several have chosen the auto, but most stick with the stock 5-sp. The t-case is another matter. There are several gear ratio combinations to look into. Final choice depends on tire size and axle ratios. Axle ratios very depending on drive conditions (mostly highway, mostly city, all dirt, etc.) and again tire size. Axle ratios stock is 3.73. Most just swap in a Trackick gears. There are other ratios available also. There has been on some occasion where a Volvo tranny is placed where the intermediate shaft sits. Some have added a Klune-V case, others added the Trail Tough Rock Box, etc. It's all dependant on the amount of money you have available to mod your Suzuki. Take it in steps. Use your vehicle off-road and on. Determine what mod (cheap or not) would benefit the vehicle and make a plan. Gradually step into the modding of the vehicle. Without experience, you'll spend too much money and won't really accomplish your main goal.
There are several vendors: check out Izook for a large list. Each specializes in some kind of mod for the Sami, though almost everyone has the basic thing.
I'd suggest that you join an organized 4wd club. This will help you in a lot of ways to understanding what'll benefit your vehicle for the type of terrain you'll wheel in. Besides having mechanical friends is always a benefit. Most have special tools which you won't have.