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H260 gearing options??? 3.7s/3.5s?

Posted: Wed Feb 22, 2012 8:23 pm
by jounquay
I currently have a h260 in a chopped gu wagon with a 6.5 turbo diesel v8 and am wanting to change gearing to increase fuel economy and top end speed. My vehicle came out with 4.3s and previous owner has changed them to 4.1s. I have done a fair bit of searching and cant seem to locate any specs or info about ratios for the 260. I would like to change to 3.7 ideally but i dont think these are available in the 260. I have seen it mentioned that the h260s in 4.8petty auto had 3.5s. Not sure if this is correct or if i would push them? Hoping someone could have some info to help me out. Have even had thoughts of marks 5th gear upgrade or changing rear housing to smaller version if i can get the right ratio in that. thanks

dan