4l80e -vs- 700r4 weight difference

JSM

Active member
To avoid any guesses today we weighed both transmissions.

the 4l80e is 40lbs heavier.

700r4 is 134lbs
4l80e 174 lbs.
 

AlaskaTy

New member
Re: 4l80e -vs- 700r4 weight difference

I don't know much about transmissions...what kind of advantages are you looking for when going to the 4L80E. I always thought the 700R4 was a pretty beefy trans, especially when built right.
 

2kwik4u

Resident slow guy
Re: 4l80e -vs- 700r4 weight difference

Even when built right, if your putting 500ft-lbs plus through it on a daily basis and have the traction to control that power, the only thing that is left to slip is the trans......the 700 just can't take the abuse the 80E can. There are other advantages as well (such as gearing change, electronic firmness and shift point control).......However the main one is strength. The 80E was designed with towing, and abuse in mind, and as such it holds up to ALOT of torque with ALOT of traction much better than the 700R4 could ever hope to......The design criteria is closer suited to what the Sy/Ty needs.
 

AlaskaTy

New member
Re: 4l80e -vs- 700r4 weight difference

2kwik4u said:
Even when built right, if your putting 500ft-lbs plus through it on a daily basis and have the traction to control that power, the only thing that is left to slip is the trans......the 700 just can't take the abuse the 80E can. There are other advantages as well (such as gearing change, electronic firmness and shift point control).......However the main one is strength. The 80E was designed with towing, and abuse in mind, and as such it holds up to ALOT of torque with ALOT of traction much better than the 700R4 could ever hope to......The design criteria is closer suited to what the Sy/Ty needs.
thanks for the info.
 

2kwik4u

Resident slow guy
Re: 4l80e -vs- 700r4 weight difference

No problem.....there's a bit more to it as well. Involving how the gearing loads the motor, and the ability to change the shift points to suit the powerband of your particular motor. Also the internal workings are a a bit different in how things stop/start to change gears, and the 80E's design in that area is superior as well.

The biggest thing I've noticed riding in Jeremy's (six-is-enough) truck is the lack of a brutal 1-2 shift that the 700's have. Since the 80E can modulate line pressure electronically, when at part throttle the shifts are crisp, but they don't bang into the next gear like the 700's do. However once into full throttle the line pressure comes up, and you get a good hard shift......Makes driving it around significantly more enjoyable IMO.

There is a review around here somewhere from the last week, where a guy went through the whole change process, and has nothing but good things to say about it.....lemme try to find that for you.

*edit* Found it.....Click Here for a 4L80E review

Now back to your regularly scheduled tranny weight thread.....Sorry for the hijack Jeff
 

NecroWolf

lost marbles member
Re: 4l80e -vs- 700r4 weight difference

i would have to agree the 4l80e wieghs in at 173, with all of them i've had to put in.
 

Try Me

New member
Re: 4l80e -vs- 700r4 weight difference

This is dry weight with no converter correct? Just curious. good info though. I know i lifted my 700 with the converter still in it and then my 4l80 w/o converter and there was a difference, but not as much as i thought...
 

DanenGraham

Big in the rear
Re: 4l80e -vs- 700r4 weight difference

if GM is saying 100, doesnt the 4l80e come with a freakin huge TC stock??
 

SeattleSy#1255

Category 5 Conservative
Re: 4l80e -vs- 700r4 weight difference

JS Manufacturing said:
To avoid any guesses today we weighed both transmissions.

the 4l80e is 40lbs heavier.

700r4 is 134lbs
4l80e 174 lbs.

good info Jeff thanks.
 

JSM

Active member
Re: 4l80e -vs- 700r4 weight difference

Both weights are without convertor.

Jeremy did weigh his stock sy convertor -vs- the one built for his 4l80e and the 4l80e was 2 lbs heavier. I don't know the weights though. I would say the 2lbs there is a wash or close enough to it.
 

Six-is-Enough

Use to do a little Boost
Re: 4l80e -vs- 700r4 weight difference

JS Manufacturing said:
Both weights are without convertor.

Jeremy did weigh his stock sy convertor -vs- the one built for his 4l80e and the 4l80e was 2 lbs heavier. I don't know the weights though. I would say the 2lbs there is a wash or close enough to it.


44lbs 80e vs 42 stock sy
 

blk00z28

Forced to by choice
Re: 4l80e -vs- 700r4 weight difference

2kwik4u said:
The biggest thing I've noticed riding in Jeremy's (six-is-enough) truck is the lack of a brutal 1-2 shift that the 700's have. Since the 80E can modulate line pressure electronically, when at part throttle the shifts are crisp, but they don't bang into the next gear like the 700's do. However once into full throttle the line pressure comes up, and you get a good hard shift......Makes driving it around significantly more enjoyable IMO.
Man, thats the one thing I truely love about my truck, is its 1-2 shift and the 2-3 shift. I wouldnt feel right about it not planting me in the seat everytime I shift around town, lol. :D
 

mattw

Active member
Re: 4l80e -vs- 700r4 weight difference

blk00z28 said:
Man, thats the one thing I truely love about my truck, is its 1-2 shift and the 2-3 shift. I wouldnt feel right about it not planting me in the seat everytime I shift around town, lol. :D


Yeah, but the good thing about the 80e is that you can set the line pressure so that it shifts however you want during any condition.. You better beleive that I would be dialing in painfully hard shifts under all conditions as well...


-Matt
 

Crimson93Ty

PITA new guy
Re: 4l80e -vs- 700r4 weight difference

Just curious. Why would you want it to beat the piss out of you going through a parking lot or parking garage? Don't get it. Maybe that's why some 700s last to the 10s for some guys and others can't get them to the grocery store without a failure.
 

Try Me

New member
Re: 4l80e -vs- 700r4 weight difference

lol, yea i am kinda digging the softer shits when im barely on the gas. makes it feel more like a streetable car than before. plus i drove it almost 2 years with it banging every shift, so its a welcome change...
 

NecroWolf

lost marbles member
Re: 4l80e -vs- 700r4 weight difference

yeah i think the 1-2 shift is the one thing i'm not too fond of in my ty. but it was kewl as hell without the front driveshaft when the back tires would go up in smoke really easily.
 

HotRudyRod

New member
Re: 4l80e -vs- 700r4 weight difference

blk00z28 said:
Man, thats the one thing I truely love about my truck, is its 1-2 shift and the 2-3 shift. I wouldnt feel right about it not planting me in the seat everytime I shift around town, lol. :D
Yeah i also loved that kick in the back of the neck feelin in my 700, i hope the new tranny feels that way when installed.
 

sean

Member
Re: 4l80e -vs- 700r4 weight difference

do you have built the 80e tranny or can you put it in stock? also what trucks came with the 80e?
 
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