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05-01-2014, 08:22 AM
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#1 |
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Registered User
Join Date: May 2013
Location: Houston Texas
Posts: 713
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6l80
5.3 w/6L80. When first starting my truck the transmission seems a little sluggish not wanting to shift properly but it seems like it is just first to second. It shifts but just seems like it doesn't want to, it this because it is cold? Once I get down the block it works fine. It has been this way since install and I just wanted to see if anyone is having a similar experience.
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05-01-2014, 12:29 PM
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#2 |
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Registered User
Join Date: May 2013
Location: Houston Texas
Posts: 713
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Re: 6l80
After driving it this morning, it is not that big of a deal. Just feels funny at first.
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05-02-2014, 12:14 AM
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#3 |
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Registered User
 
Join Date: Dec 2012
Location: Los Banos CA
Posts: 2,705
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Re: 6l80
Mine shifts funny the first few starts. I think mine is because the speedometer is of about 14%. I will have the truck dyno tuned and see what happens.
__________________
1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR *SOLD* GO  GO!!!
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05-02-2014, 07:57 AM
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#4 |
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Registered User
Join Date: May 2012
Location: Madison Alabama
Posts: 201
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Re: 6l80
After a bunch of research and talking with a few guys who tune lsx's for a living, I have been told that the 6l80 takes quite a bit of tuning to get just right. Keep us posted on the progress. I think I am going the 6l80 route myself. Did you guys have to do much cutting to install the trans?
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06-19-2015, 01:22 PM
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#5 |
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Registered User
Join Date: May 2013
Location: Houston Texas
Posts: 713
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Re: 6l80
Hi Dubnova,
I did not have to do any cutting to install the trans but the trans tunnel does need cutting if you want the trans pan to be above the frame rails. My frame rails are 9" off the ground and my trans pan is 6" off the ground which means it hangs 3" below the frame rails. I am planning on cutting my trans tunnel to raise the pan but I don't want to mess the angle up either. Anyone have any experience with this?? |
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06-19-2015, 03:19 PM
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#6 |
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*************
Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,837
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Re: 6l80
Buy a Cadillac CTSV tranny pan. It is about 1.5" shorter...
__________________
Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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06-19-2015, 04:13 PM
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#7 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: 6l80
My 4l80e does just fine. I've never noticed anything with shifting it.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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