4L80
- Thread starter ThaJokr
- Start date
4L80
Good question, not sure why it has not come up sooner. I mean with every one going to 400 turbos in the really fast trucks, why not the 4L80E and retain the overdrive. I think if I was going to swap trannys I would definately look into the 4L80E and do what ever I had to do to make it work.
Although I don't think my Ty will ever be fast enough to worry about a stout tranny like that.
I do have a 400 turbo in several of my older muscle cars, one with 4:10's out back and have been thinking about swapping the 4L80E in it or go the easy route and install a gear vendors unit.
I really love those 400 turbos, My chevelle weighs 4100 lbs. and is running high 11's, I have gone through the motor 3 times over the last 18 years but that 400 turbo is still going strong. Larry.
Good question, not sure why it has not come up sooner. I mean with every one going to 400 turbos in the really fast trucks, why not the 4L80E and retain the overdrive. I think if I was going to swap trannys I would definately look into the 4L80E and do what ever I had to do to make it work.
Although I don't think my Ty will ever be fast enough to worry about a stout tranny like that.
I do have a 400 turbo in several of my older muscle cars, one with 4:10's out back and have been thinking about swapping the 4L80E in it or go the easy route and install a gear vendors unit.
I really love those 400 turbos, My chevelle weighs 4100 lbs. and is running high 11's, I have gone through the motor 3 times over the last 18 years but that 400 turbo is still going strong. Larry.
4L80
Why would anyone not be willing to give out info like that. Not like it's top secret stuff. What a shame. I thought everyone was on this board to help people, very few of these trucks around and even fewer that know anything about them. I am guessing that the output shaft is modified to install the transfer case correct? I have read alot of people on here running 400's, some of them even have it in there signature. Surely someone can enlighten us on the output shaft, it's not like the 400 will make the truck any faster, just more durable. So why such a secret? Larry
Why would anyone not be willing to give out info like that. Not like it's top secret stuff. What a shame. I thought everyone was on this board to help people, very few of these trucks around and even fewer that know anything about them. I am guessing that the output shaft is modified to install the transfer case correct? I have read alot of people on here running 400's, some of them even have it in there signature. Surely someone can enlighten us on the output shaft, it's not like the 400 will make the truck any faster, just more durable. So why such a secret? Larry
NOJIMMY
New member
"SyTy wife to SyTy husband...I see you made "GREASE" for dinner!"
-from the mind of Larry Brown
Dude, check out
http://www.syty.net/phpBB2/viewtopic.php?t=9309&start=0
At this point, <believe me> most topics of this type have been discussed.
-from the mind of Larry Brown
Dude, check out
http://www.syty.net/phpBB2/viewtopic.php?t=9309&start=0
At this point, <believe me> most topics of this type have been discussed.
ed hess
race or get outta the way
>>>I mean with every one going to 400 turbos in the really fast trucks, <<<
Funny thing about the above statement.
everyone = ed hess?
in the really fast trucks? I nver really considered my truck as fast. but excuse me while I get cocky and take that as a compliment.
one other point and i will get back on topic.
ya know it will be 2 years ago this coming july when after 13 years of ownership i took my 100k mile sy to the track and ran a whopping 14.4.
so anyway getting back on topic.
guess i can speak with some authority here since i did the 1st 400 around here and actually kept the AWD.
Only 2 peeps have done the 4l80.
robert in sweden and the other guy (cant recall his name)
IN my case it was a matter of the trans shop haveng the exepertise to take the job on as a one of a kind (carl rossler did mine). spend the time and do the research comparing output shafts from the various manufactures of output shafts availalbe that could match up to the systy transfer case.
I beleive the guy in chicago that did his used a 2wd/4wd selectable case. not an oem systy transfer case. I dont know if robert used a syty case.
Otherwise the install of it would be pretty straightforward as my tech write up in the tech section. differences might be floor clearance and lenght of pad off the rear mount. shaft lenght changes will vary also, then again you will have to program the unit.
oh and the cost is also 2x the 400 conversion cost.
hth
ed
Funny thing about the above statement.
everyone = ed hess?
in the really fast trucks? I nver really considered my truck as fast. but excuse me while I get cocky and take that as a compliment.
one other point and i will get back on topic.
ya know it will be 2 years ago this coming july when after 13 years of ownership i took my 100k mile sy to the track and ran a whopping 14.4.
so anyway getting back on topic.
guess i can speak with some authority here since i did the 1st 400 around here and actually kept the AWD.
Only 2 peeps have done the 4l80.
robert in sweden and the other guy (cant recall his name)
IN my case it was a matter of the trans shop haveng the exepertise to take the job on as a one of a kind (carl rossler did mine). spend the time and do the research comparing output shafts from the various manufactures of output shafts availalbe that could match up to the systy transfer case.
I beleive the guy in chicago that did his used a 2wd/4wd selectable case. not an oem systy transfer case. I dont know if robert used a syty case.
Otherwise the install of it would be pretty straightforward as my tech write up in the tech section. differences might be floor clearance and lenght of pad off the rear mount. shaft lenght changes will vary also, then again you will have to program the unit.
oh and the cost is also 2x the 400 conversion cost.
hth
ed
myclone
Donating Member
ed hess said:>>>I mean with every one going to 400 turbos in the really fast trucks, <<<
Funny thing about the above statement.
everyone = ed hess?
in the really fast trucks? I nver really considered my truck as fast. but excuse me while I get cocky and take that as a compliment.
one other point and i will get back on topic.
ya know it will be 2 years ago this coming july when after 13 years of ownership i took my 100k mile sy to the track and ran a whopping 14.4.
so anyway getting back on topic.
guess i can speak with some authority here since i did the 1st 400 around here and actually kept the AWD.
Only 2 peeps have done the 4l80.
robert in sweden and the other guy (cant recall his name)
IN my case it was a matter of the trans shop haveng the exepertise to take the job on as a one of a kind (carl rossler did mine). spend the time and do the research comparing output shafts from the various manufactures of output shafts availalbe that could match up to the systy transfer case.
I beleive the guy in chicago that did his used a 2wd/4wd selectable case. not an oem systy transfer case. I dont know if robert used a syty case.
Otherwise the install of it would be pretty straightforward as my tech write up in the tech section. differences might be floor clearance and lenght of pad off the rear mount. shaft lenght changes will vary also, then again you will have to program the unit.
oh and the cost is also 2x the 400 conversion cost.
hth
ed
Outta all that I still dont see the statement "Im using a TH400 with a stock xfer case and so and so made the output shaft" or "rossler made the output shaft" or "rossler had so and so company make the output shaft for them" or "rossler found a stock GM 80E shaft that would work with the stock syty xfer case".
I sent you an email or a PM (dont recall which) eons ago about where to get the output shaft and never got a response. No big deal IMO as when Im tired of blowing up 700s I'll find a way to get the needed output shaft for a 80E install one way or the other.
Personally I could care less about what it costs and who builds the transmission as Im a DIYer and would build it myself. It would, however, make life easier if I knew who to call up and order the custom output shaft from which is the whole problem here. Either ppl just gave a blank check to a trans shop and said "I want this (pointing to a TH400) in there (pointing to a sy/ty)" without knowing how/what was done or....they arent coming up off the source of the output shaft for who knows what reason. It doesnt make a flyin flip to me either way but it'd still be nice to know where to get the needed part or if its a GM part then post up the part #.
4L80
Hello Ed, thanks for the response, although I am not looking to do the swap in mine, I am always curious at what other people are doing with these trucks and the thought of a 400 turbo interested me. I have 4 other cars in my garage that run the 400 (factory installed) and I feel it is a great tranny. I have even rebuilt them myself, very easy tranny to work on. I was never really fond of 700R4's but that is what they came with so I live with it. Mine works fine and is a stock low mileage truck so I plan to leave it alone. If I ever do have problems with the tranny I will probably just have a sytyer rebuild it since my Ty will probably never make enough power to need a 400.
Yes in my opinion your truck is fast, I feel any syty that dips into the 11's or quicker is fast and very hard to do. Takes alot of money to make these things go fast and be dependable at the same time. One reason why mine will stay mostly stock. I have other cars that are fast and much cheaper to play with. Cool truck though, hope to meet some of you guys sometime, would like to check out some of these trucks in person. Thanks, Larry.
Hello Ed, thanks for the response, although I am not looking to do the swap in mine, I am always curious at what other people are doing with these trucks and the thought of a 400 turbo interested me. I have 4 other cars in my garage that run the 400 (factory installed) and I feel it is a great tranny. I have even rebuilt them myself, very easy tranny to work on. I was never really fond of 700R4's but that is what they came with so I live with it. Mine works fine and is a stock low mileage truck so I plan to leave it alone. If I ever do have problems with the tranny I will probably just have a sytyer rebuild it since my Ty will probably never make enough power to need a 400.
Yes in my opinion your truck is fast, I feel any syty that dips into the 11's or quicker is fast and very hard to do. Takes alot of money to make these things go fast and be dependable at the same time. One reason why mine will stay mostly stock. I have other cars that are fast and much cheaper to play with. Cool truck though, hope to meet some of you guys sometime, would like to check out some of these trucks in person. Thanks, Larry.
nightdiver
Active member
The other guy is Ryan "oddfireV6". He has done a very nice work in there and the 4l80 is builted with a lot of extras.
Im gonna give a last try with the 700r4 since it slips from the time i raised the base boost to 22-23 psi. The truck is fast and i can hear the builted 700r4 having difficult times trying to shift gears.
The 400 is next but i hate the non lockup 3 gear thing...thats why ill try the 700 for one more time
Im gonna give a last try with the 700r4 since it slips from the time i raised the base boost to 22-23 psi. The truck is fast and i can hear the builted 700r4 having difficult times trying to shift gears.
The 400 is next but i hate the non lockup 3 gear thing...thats why ill try the 700 for one more time
myclone
Donating Member
ed hess said:
Ed,
I know youre running a 400 but what Im after is what type 400 output shaft are you using? As in: Length (short or long shaft)? Spline count? Is it a stock GM part or custom made? The adaptor to bolt the xfer case up is no big deal but the output shaft is.
Worse case scenario is I can yank the drive shaft on the dually and measure the output shaft on it since its got a 80e but Id rather not since its a 2wd and takes a shoe horn and KY to fit it in my garage.
ed hess
race or get outta the way
myclone said:
heres what i found: at: http://www.tciauto.com/truck/truck_conversion.htm
Truck Master Conversion Kits
TCI offers many different types of conversion kits to owners of General Motors vehicles to enable interchange of various styles of GM transmissions. This is particularly useful for heavy load vehicles that may benefit from a heavier duty transmission for dependability. All kits provide the necessary adapter plate, output shaft and hardware required for installation. The TCI 329900 kit also contains dust cover, dipstick, detent cable and replacement shift indicators. Kits will require some degree of drive line modifications.
Converting from: Converting to: Application Transfer Case Vehicle Modifications Required Part No.
Chevy TH-350 Chevy
TH-400 Pre 1980 4WD 203 or 205 shorten rear driveshaft 3.7"
lengthen front driveshaft 3.7" 229900
Chevy TH-350 Chevy
TH-400 1980-Later 4WD GM w/ 3" spacer to transfer case 208 shorten rear driveshaft 3.7"
lengthen front driveshaft 3.7" 229901
Chevy TH-350 Chevy
TH-400 1980-Later 4WD GM w/ 5" spacer to transfer case 208 shorten rear driveshaft 3.7"
lengthen front driveshaft 3.7" 229902
700-R4 (4L60E) Chevy
TH-350 All 700-R4 4WD V8 208 None 329900
700-R4 (4L60E) Chevy
TH-400 All 700-R4 4WD V8 208 shorten rear driveshaft 15/16"
lengthen front driveshaft 15/16" 229901
site map
©1999-2004 TCI® Automotive, LLC, All Rights Reserved