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03-17-2016, 07:30 PM | #1 |
Registered User
Join Date: Mar 2016
Location: Odessa
Posts: 3
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Re: 4L80E & TH400 Tech.
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03-19-2016, 09:45 PM | #2 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: 4L80E & TH400 Tech.
If your revving over 5500 RPM, A .030" Bleed Hole in the edge of the Drum along with High Rate Direct Return Springs are required. These two things keep the Direct from "Soft Applying" in 1st & 2nd gears, Soft Applying burns the Direct clutches.
The Overdrive Sprag & Overdrive Planetary Carrier will not like WOT shifts into 4th with 1200HP. CK has a Billet OD Carrier....http://www.ckperformance.com/View/4L...NETARY-CARRIER HAS TO BE USED with a '91-'96 Overrun Clutch housing & Sprag! The Early OD Sprag is larger than the '97 & version. You will also need.... Billet Input Shaft. Billet Forward Clutch Hub. These two are optional, But over 1000hp are Recommended. Billet Main Shaft. Billet Sun Gear Shaft. |
03-20-2016, 09:21 PM | #3 |
Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: 4L80E & TH400 Tech.
How much setback should the torque converter on a 4L80 have from the face of the bell housing? I can't seem to get my trans and engine connected with out binding. It acts as if the converter is not fully seated but I've had it off and on 3 times, spin it once on the input shaft and I always end up with about 9/16" setback when I need about 15/16". http://i183.photobucket.com/albums/x...s79/image.jpeg
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84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala Last edited by Mavis79; 03-20-2016 at 09:33 PM. |
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