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05-17-2018, 05:08 AM | #1 |
Registered User
Join Date: May 2013
Location: Royalla, NSW, Australia
Posts: 184
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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 |
05-17-2018, 11:59 AM | #2 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,695
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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. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
05-17-2018, 05:26 PM | #3 |
Registered User
Join Date: May 2013
Location: Royalla, NSW, Australia
Posts: 184
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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? |
05-18-2018, 08:45 AM | #4 |
Senior Member
Join Date: May 2004
Location: Binghamton, NY
Posts: 3,453
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Re: 88 3500 TH400 to 4L80?
I think the prices have come down on those. Somewhere I read around $400 for the controller.
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05-18-2018, 09:10 AM | #5 |
Registered User
Join Date: May 2004
Location: Miss Co Arkansas
Posts: 679
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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.
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76/77/78 Cheyenne 1997 K3500 454 soon to be 496 |
05-18-2018, 07:19 PM | #6 | |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,695
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Re: 88 3500 TH400 to 4L80?
Quote:
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. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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