Just got my m715 in jan. and is going to be my everyday driver, it has a ford 460/c6 combo in it. and i just got back today from a trip out to the desert to do some off roading.

off road the thing is a wonderful.
getting to the off road some 180 miles from my house was not so wonderful.
top speed of around 50-55 at 3000rpms. and gear oil leaking out of the t-case everywhere.

was curious what the best options are to go about getting much more manageable highway speeds but still have it crawl rocks well.

-over drive unit bolted to the back of the c6 tran.?
-no doubt reading around on the fourm i will have to change the t case?? to a np205 will it be able to handle the highway speeds?
-and should i change the stock axle gears?

alot to think about already and i just bought it...

dan