Difference between new modern 4l80e's and old 80e's?
11-13-2012, 09:39 AM
#1
Difference between new modern 4l80e's and old 80e's? Hey guys, for a while now I have been trying to get some good info about he differences of a new modern 4l80e 1998-2012 range compared to a 1993-1996 range. All I have found out is that the old style 4l80e's have different oil lines or have different positioned oil lines... Is this true? I also read that they can both really be rebuilt almost the same, just minor differences in the rebuild process. According to a few people I have talked to say that a old version 80e tends to have problems? One of the guys told me that they tend burn down because they really arent that good of a transmisson to rebuilt... is this a fact? I would really appreciate any type of info regarding the old versions of 4l80e's compared to the new modern 80e's... Thanks guys!
Alex
Alex
11-13-2012, 06:00 PM
#2
bell housing bolt hole locations are different
older models have a couple slightly better internal parts (forget off the top of my head which they are)
oil lines are located near the front in older models (better location imo)
'92-'93's have old style wiring harnesses/plugs if they haven't been rebuilt already.
That's about all I remember when I did research on my swap. I've always heard that builders tend to like the older ones as far as mild builds and holding more power. Plus core costs are a lot less on the older ones, which means a cheaper trans in the long run. With an older case, you'll have a better location for dealing with the oil lines, better parts if you leave it mostly stock, and only have to deal with maybe not using two bolt holes.
older models have a couple slightly better internal parts (forget off the top of my head which they are)
oil lines are located near the front in older models (better location imo)
'92-'93's have old style wiring harnesses/plugs if they haven't been rebuilt already.
That's about all I remember when I did research on my swap. I've always heard that builders tend to like the older ones as far as mild builds and holding more power. Plus core costs are a lot less on the older ones, which means a cheaper trans in the long run. With an older case, you'll have a better location for dealing with the oil lines, better parts if you leave it mostly stock, and only have to deal with maybe not using two bolt holes.
11-13-2012, 06:46 PM
#3
bell housing bolt hole locations are different
older models have a couple slightly better internal parts (forget off the top of my head which they are)
oil lines are located near the front in older models (better location imo)
'92-'93's have old style wiring harnesses/plugs if they haven't been rebuilt already.
That's about all I remember when I did research on my swap. I've always heard that builders tend to like the older ones as far as mild builds and holding more power. Plus core costs are a lot less on the older ones, which means a cheaper trans in the long run. With an older case, you'll have a better location for dealing with the oil lines, better parts if you leave it mostly stock, and only have to deal with maybe not using two bolt holes.
older models have a couple slightly better internal parts (forget off the top of my head which they are)
oil lines are located near the front in older models (better location imo)
'92-'93's have old style wiring harnesses/plugs if they haven't been rebuilt already.
That's about all I remember when I did research on my swap. I've always heard that builders tend to like the older ones as far as mild builds and holding more power. Plus core costs are a lot less on the older ones, which means a cheaper trans in the long run. With an older case, you'll have a better location for dealing with the oil lines, better parts if you leave it mostly stock, and only have to deal with maybe not using two bolt holes.
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11-16-2012, 03:16 PM
#11
Yes, because here where I live (Houston area) I have seen a few junk yard 80e's that need a full rebuilt for $200-$350 dollars, all depending on the year and condition, now days they are really hard to find at that price due to the amount of people buying them and looking for them for their car/truck builds.If your planning to have it newly rebuilt just look for one thats at a really low cost BUT that is also in good shape to consider it good for a rebuilt 
11-16-2012, 03:21 PM
#12
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Get in touch with Jakes Transmission. He has a run down of the differences and is the best source for a power rebuild.
From what I remember stock they are good to 450 but with a shift kit ($100) they jump to ~750
From what I remember stock they are good to 450 but with a shift kit ($100) they jump to ~750
they answer your questions with very detailed answers!
11-17-2012, 10:00 PM
#14
Blackpanther, that was me you spoke with on the phone Good talking with you. I'm not sure if I mentioned it on the phone or not, but the 5 pinion planets on the new 4l85es are not really an upgrade like the 4l60es as they're not particularly a weak point to begin with. Something to keep in mind if anyone ever asks
Good talking with you. I'm not sure if I mentioned it on the phone or not, but the 5 pinion planets on the new 4l85es are not really an upgrade like the 4l60es as they're not particularly a weak point to begin with. Something to keep in mind if anyone ever asks
11-18-2012, 08:55 AM
#15
Blackpanther, that was me you spoke with on the phone Good talking with you. I'm not sure if I mentioned it on the phone or not, but the 5 pinion planets on the new 4l85es are not really an upgrade like the 4l60es as they're not particularly a weak point to begin with. Something to keep in mind if anyone ever asks
Good talking with you. I'm not sure if I mentioned it on the phone or not, but the 5 pinion planets on the new 4l85es are not really an upgrade like the 4l60es as they're not particularly a weak point to begin with. Something to keep in mind if anyone ever asks my main concern was if it was worth rebuilding a 93 4l80e because of the year and if it is a strong of a transmission for high HP builds lol as I have read, seen the posts on this thread, and as of what you have told me it is worth investing money into the 93 4l80e 
which makes me have no doubt that its hell of a good 80e 
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