So I have searched here about the pros and cons on pinion offset but am wondering about the specific application in my 36. Pretty much stock floor and tunnel, would the offset cause interference with the tunnel? I’m running the Posies rear parallel leaf kit so it will be lower than stock. It seems the offset pinion is readily available and there is a wait on the center one for some reason. Not that I’m in a rush. If anyone has any insight I’d appreciate the information. Thanks
I don't think it matters other than aesthetics. I chose to offset it to keep my driveline straight and parallel to the pipes. Some guys prefer having the pumpkin in the center when viewed from behind. Like I said, batter's choice.
I bought a Currie housing with only thing needed was the drop in. They asked me if I wanted to have the driveline or housing centered. Heck I didn’t know at the time. After talking to them I used a 4 inch piece of PVC (my ch***is was bare though) and mimicked the offset the best I could. This was for a ‘36 Ford PU. Had no clearance issues, but much more forgiving with a short PU Cab than a full sized body I’d guess?
Out side of tight clearance on some cars the only issue is the nonsense of people being **** about everything being perfectly square visually and some can't mentally handle the driveshaft angling a bit even though Fords with nine inch rears in them (or 8 inch or the Explorer rears) have had them since 1957. It's worked on millions of Fords in that time without an issue, you don't hear of Fords having any more U joint issues than GM or Mopars in stock condition . To me, what looks like hell is following a hot rod with a nine inch in it that someone has shortened one axle to center the pinion and the whole center section is off center when seen from the rear.
I'm running a centered 9" on my '40 with no driveshaft clearance issues. Rear suspension is CE with 1 1/2" lowering blocks at this time. Actual 9" pinion offset is 15/16".
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