now on a ls2 gto swap into a car using 4.10 gears the close ratio would be the way to go also correct?

So chances are you are only running a 26" tire. Combine that with the low 2.97 first gear of a wide ratio and a 4.10 rear gear and your start line ratio would be way low and .50 final drive will make those 4.10s well 2.05. So you will have a first gear good for pulling trailers and a top gear for Boneville.:rolleyes: Does that sound like what you want? :mad:

JMO close ratio is the only sensible T56. :thumbsup:

A guy on another site made this spreadsheet to play around with ratios and their effect. Pretty cool, but I think some of the transmission ratios are wrong.

https://docs.google.com/spreadsheet/...SSExzU2c#gid=0

[QUOTE=Flash68;443219]Close ratio vs wide ratio is the correct terminology. It's been around for 50 years. Todd's just had his head in the sand with that junk TKO. :lol:

Man you guys are brutal!!!:DThanx again guys It's just getting old buying stuff twice!

lol wow that sums it up. i guess close ratio it is

That's the way I remember it

I'm running the 2.66 1st gear in my T56 Magnum with a 4.10 gear and 28" tire.
Works great at the strip and on the highway. Just my .02:thumbsup:

The 2.66 1st gear version is what 99% of people are buying. You don't need a deeper 1st gear gear or you will simply blow the tires off and the nice thing is that 5th gear is .80 which is a closer ratio if you were to do some top speed accelleration "runs." ;)

While the .50 overdrive is nice in the other unit.... i doubt any of us are building these for commuting and the end all be all in fuel economy.

I have the 2.66 1st gear version and 3.25 gears out back. Hoping for 750rwhp/750rwtq+ on e85. Holley EFI just announced their partnership with Davis Technologies (www.moretraction.com) for a traction control module. I won't be having traction issues when trying to ramp up the boost thru the gears. It is rather affordable too. ($599 base model or $999 for a self learning fully tuneable unit) Uses a driveshaft sensor to operate.

I prefer my right foot.

2.66 Is a done deal thanx to Todds expertise!!:unibrow: I got it all beefed up with all the goodies to handle a ''LITTLE'' more HP . Now all I have to do is get it American Powertrain has no Tremec cases ???? 6 weeks now..:rolleyes: Just called yesterday still nada!!!:mad:

Expertise? Based on what... his TKO experience? :rofl: