Is there anyway to stuff 5.38 gears in a hp ford 9" rear? I'v been searching and no one seems to sell them, I have also emailed currie but they are taking a while to reply. So is it even possible?

currie only goes up to 4.88's in their hi pinion shit. i remember reading somewhere that sunray was working on a high pinion setup. might wanna call them.

I've only found a 5.29 and a 5.43 standard rotation. I would think someone should make a HP ratio the same??? There is a thread somewhere that states the percentage the front and rear ratios can fall within each other. Around 2% if I remember correctly. Might wanna look into that!

4.88 is the lowest u can go in a high pinion

Yah, the high pinion uses the 8.8 ring gear and 4.88's as low as anyone makes for them as far as i know.
marc