can u slap shift a 4l80 transmission

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Jul 10, 2013 | 06:18 PM

sealbeach1

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Teching In

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can u slap shift a 4l80 transmission

I feel like a fool. I built a very high end 57' belair convert with a LS3 supercharger and 4l80 transmission. I used a shifter out of a 2004 Cadillac SRX.
I was told it would work and he also told I would be able to slap shift it.

I just found out that this is not the case. Now I have a important decision to make. Either scrap the shifter and put a aftermaket shifter in the car. The problem lies in that the interior is complete and I would have to do major work to the center console.

Anybody have any sugestion on what I could do....

Jul 11, 2013 | 07:48 AM

Gearstar Performance

FormerVendor

Joined: Apr 2013

Posts: 49

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From: Akron

Do you have a full manual valve body on your 4L80? If not, Transgo makes a kit to convert the valve body to full manual.

Jul 11, 2013 | 07:57 AM

mrvedit

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Joined: Aug 2010

Posts: 7,323

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From: Ann Arbor, MI

What is your application and priority?
If its at the drag strip, letting a computer controlled trans shift by itself will always give you better and more consistent times.

Aug 6, 2013 | 01:05 PM

maddoglou454

Banned

Joined: Oct 2009

Posts: 308

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From: Cumming GA

Maddog 4L80E FMVB

We use an external full manual box real simple, you do not need to drop the pan. Run 12 volts to red wire, of course. Once you ground the brown wire it will activate lockup.

You can call us and talk to a live person. Up until 10 PM Eastern standard time , Monday through Sunday.

Thank You,
"Mad Dog" Lou

Mad Dog Transmissions
Phone 770-781-0949
Fax 770-781-0969 maddoglou454@aol.com

Web: www.maddogtransmissions.com
Facebook: www.facebook.com/maddogtransmissions
Twitter: www.twitter.com/maddoglou
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Aug 6, 2013 | 11:26 PM

zgp

On The Tree

Joined: Aug 2010

Posts: 122

Likes: 1

Quote:

Originally Posted by sealbeach1

It all depends on what controller you are using for the transmission. How are you controlling the transmission?

Aug 12, 2013 | 06:05 PM

silverls1z28ofdeath

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Joined: Apr 2010

Posts: 173

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From: Omaha,NE

Quote:

Originally Posted by maddoglou454

May come across as a douche on this subject but if you wanna buy something like this buy it from jakes since he is the original creator of this style mvb.

Aug 12, 2013 | 09:15 PM

zgp

On The Tree

Joined: Aug 2010

Posts: 122

Likes: 1

Jake has some good products. But he wasn't the originator of this . GM performance has done it for years among others.

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Aug 13, 2013 | 03:54 PM

Jake's Performance

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Quote:

Originally Posted by silverls1z28ofdeath

May come across as a douche on this subject but if you wanna buy something like this buy it from jakes since he is the original creator of this style mvb.

Our Manual Control Box was designed by a member here. I didn't design it. I designed the transbrakes that we've been very successful with because none of the others on the market worked or worked properly.

Rossler has a "Little Black Box" that I assume works off the same principle, and Art Carr (in Abilene) made something similar before they went out of business.

The manual control box is one of the few parts I sell to the public anymore.