IIRC, the t56 I had in my 96 camaro was a double overdrive, and 6th was like a .68 or something like that. I could be wrong, but it cruised at 55 at 1400.. something ridiculous low. Jim From: elky-bounce@xxxxxxxxxxxxx [mailto:elky-bounce@xxxxxxxxxxxxx] On Behalf Of STILLFRANKSFAULT@xxxxxxx Sent: Sunday, October 30, 2011 4:16 PM To: elky@xxxxxxxxxxxxx Subject: [elky] Re: Oh, hell! (transmission questions, too) If I'm guessing correct isn't salt racing more of a top end important mind set? If so the least loss of hp in a transmission would be preferred. So to gain that 1 to 1 final ratio, in an automatic, you would only get that in an overdrive unit with lockup converter. All manuals will give that final 1 to 1. Manual shifting seams to be an advantage on a road course. Autos, are big in bracket racing for their consistency with straight line driving. <http://cdn-cf.aol.com/se/smi/0201e05b65/08> Smokey Mt Frank In a message dated 10/30/2011 12:16:27 P.M. Eastern Daylight Time, rbuck@xxxxxxxxxxxx writes: Now. I'm looking at manual transmissions. As I wrote in another post, I didn't like the feel of driving a race car with an automatic...even one I was shifting manually. It just felt mushy with the 3500 rpm converter...and I only got about 3/4 mile to try to get a feel for it at WOT. Anyway, this brings up the question of "which transmission?" I need an overdrive if I'm gonna use a GN or T-Type 8.5" rear end...iirc, they have as stock, 3.42 gears. If I go with a Ford 9", then the overdrive thing won't matter. Anyway, the transmissions I've considered with that 8.5" are the Tremec 3550 and the GM T-56...I guess it's technically at Tremec, too.