[matt1190]

Well, I put a 9" in my '66 stang almost a year ago, the only drawback so far is that because of my lowering springs and the poor angle/location of the exaust pipes over the axles, it bottoms out on the pipes (due to the heavier weight). It's deffinetly a lot stronger and it builds up your confidence knowing that you have a beefy rear to back up the motor.

All 9"rearend parts differ from 8". New axles, housing, etc must be purchased. I got most of mine on Ebay and through Currie Enterprises. It can be tricky finding the proper housings and axles and this takes some time if you plan on assembling it yourself. Make sure that your lug patterns will match from axle to wheel. The most difficult part for me was finding a U Joint that would bolt from a 9" yoke to the stock 8" drive shaft (because they have different journal sizes) . However, after many partstores and days of searching I did find one. But they're slowly becoming extinct. I'll probably have to update the driveshaft soon.

Good luck! -Matt