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Has anyone ever put a '99+ 4l80e in an OBS c1500? After reading this - http://www.ls1truck.com/forums/front...rans-swap.html - it seem like a real PIA. After you buy all those extra parts for the conversion you might as well buy a fully built 4l60e.
What do you do bout the crossmember? Seems like an easier way would be to just drill new holes in the frame for the crossmember. Anyone tried this?
Its easier to swap than in a 99+ truck. If your motor is in the right spot the tranny xmember will bolt right up in existing holes in the frame..Easy.. A stock 4l80E is stronger than a built 60E. Well worth the upgrade if you plan on making power..Quote:
Originally Posted by flattopwill
I think I've seen a few writeups on that swap over at FSC.
4L80E swap - FSC Forum
Couldn't find a thread on it but I'm pretty sure Oldred95 and a few others have done this swap as well.
I put a 2002 4L80 into my 98. I just slid the crossmember back. 3 of the 4 holes were already in the right spot. The 80 takes a bigger yoke. The wiring is easy. It only involves 5 wires and a reflash.
Jeff
i'm doing it to my truck it steals like 20% HP if i'm correct but it will last longer then the 4l60e
So.....simply slide the xmember back, use 6.0 flexplate and spacer, 4l80e dipstick tube, and I'm good to go? My PCM and harness are already getting worked over by Nelson so I'll just have them set up that part.
Ya, I've heard that but I'm arguing with my wallet and tryin to have the "do it right the first time" attitude.Quote:
Originally Posted by Rene_lsx
your on the right track then bro....... dont worry my project already has a year and a 1/2 since I started.Quote:
Originally Posted by flattopwill
just do it, definitely worth it. I did it to my 93 and DBRODs did it to his 95? Its a simple install and well worth the effort. Reuse the stock xmember, rewire the trans electrical connector, add the ISS to the PCM and get a tune overlay added to the PCM. :rock:
I had to saw part of the ears of the 80e transmission to clear my headers but other than that it was a straight fwd swap with the right parts.
So do I need the 6.0 flexplate and spacer?
BTW I forgot to mention this whole time that this is going behind a 5.3.......oops
Well I got a sweet deal on a 4l80e so I guess I'm goin that route. I found a guy with a mild-mileage 80e that needed a 700r4 and he agreed to trade straight across! Go figure. Anyway, I found this converter and need to know what you guys think....GM 4L80E 9.5" 2800-3600 STALL TORQUE CONVERTER 4L80-E:eBay Motors (item 250549646150 end time Jan-15-10 10:05:08 PST)
I heard that going to a 9.5" converter on a 80e makes a big difference in parasitic losses and the stall on this converter will better compliment my cam. Comments welcome.
Also I still need to know if I need a 6.0 flexplate and spacer to run a 4l80e behind a 5.3
thanks
You will need a spacer and 6 hole flywheel.
The converter looks decent but the cheapest isnt always the best. I know a similar circle D verter is about $795
$795?! Holy piss! I know you have to pay to play but damn. This one has a one year warranty. Ill probably go with it unless someone has a good reason for me not to.
Yeah its expensive but 80e converters usually are more expensive. Ill be getting one when I go my swap. They are billet is why they are pricy.
@%$#!! Today I drove three hours one way to pick up what I was told was an 02 4l80e. After getting it home to look at it and doing a little research, I found out its a '96 model! Does this change anything major? I know they were changed a little throughout the years - I think 97 or 99 but I dont know if it changes if I can use it or not. Please advise!
I knew I should have done my research BEFOREhand so I would know what I was lookin at when I got there. Then, I could have identified it right there.
are both cooler lines next to each other or is one near the rear of the trans and the other up front?
the cooler lines are close together near the front....
Im running a 96 model behind my lq4 so far I havent had any issues.
Thanks for the confirmation! Did your cooler lines install with no modification? Any issues with the gear linkage?Quote:
Originally Posted by 92 6.0