T-Bones Goat

iTrader: (3)

I'm looking for anyone who has done a 4l80e swap in a GTO. Has it happened yet?

Bersaglieri

iTrader: (13)

Probably since when you get to the point of needing a 4L80E in a GTO you'd have already done a solid rear axle swap. I dont think the GTO is a good candidate for a 4L80E.

-Dustin-

T-Bones Goat

iTrader: (3)

I am doing a Ford 8.8 as we speek. The 4l80 is the only transmission that I know of that will hold the kind of power I'm looking to make and also have an overdrive.

Bersaglieri

iTrader: (13)

We'll I guess your going to pioneer it, good luck then.

-Dustin-

T-Bones Goat

iTrader: (3)

Being the first isn't always the easiest, that's for sure. Thanks for the encouragement!

mzoomora

iTrader: (36)

You could always do a TH350 with a gear vendors.

T-Bones Goat

iTrader: (3)

Sorry for the ignorance but what is a gear vendors?

mrialsm4

gear vendors is an overdrive unit that bolts into the place of the tailshaft. It gives an overdrive for each gear so you effectively have a 6 speed th350. If I were going the gear vendors route I'd opt for a built powerglide/gearvendors combo. You'd have 1st, 1.5, 2nd, 2.5 (OD) I'm not sure of the ratios though.

T-Bones Goat

iTrader: (3)

That sounds really cool. What kind of price range?

mrialsm4

quote from their site on the glide/GV combo.
Most cars with 1200hp or less will also find benefit in using 1st-over which will net a really nice 4spd spread of 1.76, 1.33, 1.00, 0.78.

mrialsm4

t-bones, you have pm

mzoomora

iTrader: (36)

In a heavy car like a GTO you would need either a lot of gear or a LOT of power to pull that first gear. That is a nice tight gear set though. The 4L80E can also be set up to use OD in any of the first 3 gears, basically being a 6 speed. They are basically just an electronic OD TH400.

T-Bones Goat

iTrader: (3)

Those are some really tall gears but the spread is really nice and would probably work great with my Procharger once I got rolling. I like the first gear of the 4l80 which is also the same in the TH400 I believe.

Bersaglieri

iTrader: (13)

Yup the first three are the same as the TH400, only it has the .75 OD.

-Dustin-

383lt1impala

iTrader: (33)

well i 4got what magazine did it but they put a th400 in a gto with a 6speed conversion but im pretty sure u can find it if u yahoo it