It turns out the 79 firebird rear end I have is 2.41. The t5 has
3.97 1st, 2.34 2nd, 1.48 3rd, 1.10 4th, .72 5th. From what I can tell it should take forever to get off ot the line but should top out at the speed of light. All of this is behind a stock 235 so maybe just short of the speed of light. 90% of of my driving is at 55 mph on a straight flat road. I am hauling light loads of lumber every now and then. About 6 times a year I drive 200 miles on interstate at 70 mph. I think I would be better off with at least a 2.73. Gas mileage is a high priority, I am looking for an old man driver not a race truck. Should I Bother with the 2.41 or is it not going to be as bad as I think.
Thanks Neilroy