3.91 is in

So Ive yet to figure out why the local parts stores never have what I need on any given day. Seems like I have to drive 12 miles each time to get a $2.79 part. Oh well the 3.91 is in and I have a feeling it's not going to be in for long. I don't like it at all. No rpm meter but it seems like I'm pushing it at 60-65 now. I thought with the 265-70 15's it would be a little better but all that happened is the spedo is now correct instead of being off by 20 mph. The /'s trans is ready so looks like a swap coming up on the 20th of the month.