Has anyone blown up and rebuilt their 5L40E transmission yet? Is there anyone doing modifications to them? Are there ANY beefier parts available for them? Torque converters? ANYTHING? Will a larger transmission fit in these cars?
Is it possible to put in a 5 speed manual WHEN this transmission blows? What is involved in the changeover?

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OOOHHH LUCY! U GOT SUM SPLAININ 2 DO!

I was watching some car tech show on a channel like Rush a couple of months ago and the guy showed how to make an automatic tranny into a manual tranny. I thought that was interesting and it was from a modern car.

But I am interested in the answer myself.

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2008 Mysterious GXP (MoMo)
Solo Mach "Shorty" and Solo High Flow Cat
ADR wheels, XenTec headlights/fogs.
Badges removed, tinted windows.
Pontiac symbol overlays all around.
VIN 100541 - Drove it home 7/13/07. As of today; 26,000 Miles

What about the auto on the Cadilac CTS-V and STS-V.?

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Aggressive GXP at $25,995.00 shipping of $600, Manual Transmission.
Options:
Air, $960; Chrome Wheels, $545; PCQ, Premium Package (Leather), $525; Radio, 6-Disc with MP3, $495; Monsoon, $395; Premium Acoustic Headliner, $150; and Sport Metallic Pedals, $115; all totals $29,180.00.
No XM/OnStar and NO Spoiler.

MODS (RKSport/Magnaflow dual exit exhaust system, K&N filter, Ventureshield.
First 1000. Aggressive with everything, NO XM/OnStar. SOLD
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NASSOA
Founding member
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It's always possible to do something

I would really like to see how a larger stall would do in the car.

I just put one in the Trans Am, and it changed things soooo much.

It'd get rid of a lot of turbo lag IMO.

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2004 Dodge Ram SRT-10 - 500HP/525 ft/lbs!!

Previously known as "SolScuba"

The 5L40E has been around for a while. Performance shops that rebuild transmissions can fit it with beefier torque converter and improved valving in some cases.
Are you adding a supercharger and plan to go beyond the 300 or so horsepower the 5L40 is meant to contain ?

It is worth noting that the 5L40E is used on Cadillac and BMW. For the solstice It's a rather beefy transmission out of the box.

It's a transmission meant for motors that run at higher than usual RPM's such as 4 cylinders and some V6's.

On the BMW boards they are saying that the 5L40 often tends to lose reverse as it ages... a common sign of aging in a 5L40E is to get in the car one morning and discover that reverse no loger works. Plan on seeing this in cars with well over 100K miles....

ME