The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 Chevy & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-17-2018, 05:08 AM   #1
Terrick down Under
Registered User
 
Terrick down Under's Avatar
 
Join Date: May 2013
Location: Royalla, NSW, Australia
Posts: 150
88 3500 TH400 to 4L80?

G'day everyone, my mate has just picked up a RCLB dually 454 with a TH400. What does he need to put a 4L80, or 4L80E into it?
TIA
Terrick down Under is offline   Reply With Quote
Old 05-17-2018, 11:59 AM   #2
Tom
driving is in my blood
 
Tom's Avatar
 
Join Date: Dec 1999
Location: Mesa AZ
Posts: 4,742
Re: 88 3500 TH400 to 4L80?

An expensive second trans only computer to control it.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-06 CBR600F4i: 110mph in 2nd at 14,000rpm= happiness.
-02 Suburban 4x4: stock
DISCLAIMER: I cant spell for the life of me.
Tom is offline   Reply With Quote
Old 05-17-2018, 05:26 PM   #3
Terrick down Under
Registered User
 
Terrick down Under's Avatar
 
Join Date: May 2013
Location: Royalla, NSW, Australia
Posts: 150
Re: 88 3500 TH400 to 4L80?

Thanks Tom. He just bought it and drove from Melbourne to Canberra and said it used more fuel than his 409 '63. So we are looking to remedy that.
Do you have a link for these trans only computers?
Terrick down Under is offline   Reply With Quote
Old 05-18-2018, 08:45 AM   #4
b454rat
Senior Member
 
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,003
Re: 88 3500 TH400 to 4L80?

I think the prices have come down on those. Somewhere I read around $400 for the controller.
b454rat is offline   Reply With Quote
Old 05-18-2018, 09:10 AM   #5
mingoman
Senior Member
 
Join Date: May 2004
Location: Arkansas
Posts: 424
Re: 88 3500 TH400 to 4L80?

http://67-72chevytrucks.com/vboard/s...d.php?t=574800

An old thread, but may have what you're looking for.
__________________
76/77/78 Cheyenne
1997 K3500 454 soon to be 496
mingoman is offline   Reply With Quote
Old 05-18-2018, 07:19 PM   #6
Tom
driving is in my blood
 
Tom's Avatar
 
Join Date: Dec 1999
Location: Mesa AZ
Posts: 4,742
Re: 88 3500 TH400 to 4L80?

Quote:
Originally Posted by b454rat View Post
I think the prices have come down on those. Somewhere I read around $400 for the controller.
That's like half what it used to be. If true that's much more reasonable.
OP- Im sorry I don't have links. I don t use them I just know that's whats required unless the truck had a 4L60e from the factory then the oem computer can be re-programmed to control the 4L80e.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-06 CBR600F4i: 110mph in 2nd at 14,000rpm= happiness.
-02 Suburban 4x4: stock
DISCLAIMER: I cant spell for the life of me.
Tom is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:07 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com