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#1 |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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4L80E Install --- just the basics...
Hi,
I'm installing a 4L80E tranny behind my LQ9 6.0L in a '87 SWB 2WD and I'm searching for just the basic steps of how to bolt up the tranny to the motor. Are there any threads outlining this with pics that anyone knows about? Any sites that might list out the parts I need to do this as well (seals and gaskets?) I've done some searching and the best I've found todate is this one: http://www.ls1truck.com/forums/front...rans-swap.html Any leads are appreciated!! Thanks!
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 Last edited by Gordonr1973; 02-09-2011 at 01:19 AM. |
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#2 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: 4L80E Install --- just the basics...
What flexplate do you have? Pics would be great. Is your 4L80E out of a LS equipped truck?
I tried to read you link...They started off by bashing the 4L60E...So I closed it Last edited by clinebarger; 02-09-2011 at 08:09 PM. |
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#3 | |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 4L80E Install --- just the basics...
Quote:
My motor is in the shop so I don't know the flexplate specifically, but I'll try to dig up some pics...I don't know what the motor that was orginally infront of it as it was out of a different truck from the LS motor I have.
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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#4 |
1965 Chevy C10, 2005 4.8L/4l60
![]() Join Date: Aug 2004
Location: DFW Texas
Posts: 8,543
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Re: 4L80E Install --- just the basics...
What year is the motor and do you know what the motor came out of? Cadilac?
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Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 ![]() ![]() ![]() support our troops! |
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#5 |
True Addiction
Join Date: Nov 2005
Location: FTL
Posts: 415
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Re: 4L80E Install --- just the basics...
I am installing an 4L80E with an LS3. Here is what I believe is going to work. This is GM p/t #12621399 and comes with spacer. I actually just got mine today. I started a thread on here that I plan to document every step.
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RCC |
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#6 | |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 4L80E Install --- just the basics...
Quote:
Tranny was out of a 2WD 2003 CHEVROLET SILVERADO C3500 I used http://www.motoverse.com/tools/vinDecoder.asp to decode the VINs
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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#7 | |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 4L80E Install --- just the basics...
Quote:
How did you figure out what kit to buy?
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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#8 |
True Addiction
Join Date: Nov 2005
Location: FTL
Posts: 415
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Re: 4L80E Install --- just the basics...
There are a couple threads on here and other sites that explain it. Basically, the converter that goes with a 4L80E has six bolts to the fly wheel, and the snout 'center piece' isn't as long as other converters in which the spacer adapts for. Good luck.
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#9 |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 4L80E Install --- just the basics...
Any other leads to specific threads / sites anyone is familiar with?
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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#10 |
Home Built '87
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
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Re: 4L80E Install --- just the basics...
Thanks for the replies.
For anybody searching this thread topic: I bought GM part number 12621399 (new flex plate and adapter with bolts) and I ordered new bellhousing bolts as well. I will put a detailed summary of how I mounted the tranny in my '87 build thread for anyone looking for that info. Thanks!
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Gordon 1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424 1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833 Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969 |
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#11 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 4L80E Install --- just the basics...
Hmm, I have a 2003 lq4, and a ~98 4l80e. My flywheel looks completely different than the OP's, any way to tell if I NEED the spacer?
Not trying to hijack, figured it was on-topic. ![]()
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING ![]() |
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#12 | |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: 4L80E Install --- just the basics...
Quote:
LQ9s were only available with 4L60E/4L65Es Thats why the OP has to buy the spacer & flexplate to run a 4L80E. Last edited by clinebarger; 02-22-2011 at 07:07 PM. |
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#13 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 4L80E Install --- just the basics...
werd, thanks!
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING ![]() |
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4l80e, lsx, swap, tranny |
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