700r4 vs 4l60
#1
Senior Member
Thread Starter
Join Date: Mar 2007
Location: Muscatine IA
Posts: 574
Likes: 0
Received 2 Likes
on
2 Posts
Car: 91 Firebird Formula
Engine: 383
Transmission: built 700r4
Axle/Gears: 4.11, 9inch
700r4 vs 4l60
hey guys got an odd question. my buddy has a 93 firebird lt1 4l60 car. keeps having transmission problems. it is a cable operated 4l60 my question is what all would it take to put a 700r4 back in it. he doesn't care if it throws a code just wants to drive it. everything ive read says the cross member mounting is different. whats different about it? and will there be anything else he will have to do.
#2
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,037
Received 1,666 Likes
on
1,264 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 700r4 vs 4l60
700-R4 = 4L60
Same exact identical no difference thing
Sometime around 89-90ish, GM decided to rename their whole transmission line in a "standardized" fashion.
4 = # of gears
L = longitudinal (front-wheel-drive cars are "T" for "transverse")
60 = some arbitrary relative torque "rating"
700-R4 of course means absolutely nothing whatsoever; just yerbasic pluck-from-anus random number.
Forget about those "numbers". Your friend's car doesn't care what "number" its transmission is assigned.
Crossmember is absolutely identical in every way, since the 700-R4 and 4L60 are the same thing.
What is the transmission actually DOING? Maybe we can help him fix his 700-R4/4L60. Chasing after those "numbers" or "model names" is a waste of time, maybe we can actually HELP.
Same exact identical no difference thing
Sometime around 89-90ish, GM decided to rename their whole transmission line in a "standardized" fashion.
4 = # of gears
L = longitudinal (front-wheel-drive cars are "T" for "transverse")
60 = some arbitrary relative torque "rating"
700-R4 of course means absolutely nothing whatsoever; just yerbasic pluck-from-anus random number.
Forget about those "numbers". Your friend's car doesn't care what "number" its transmission is assigned.
Crossmember is absolutely identical in every way, since the 700-R4 and 4L60 are the same thing.
What is the transmission actually DOING? Maybe we can help him fix his 700-R4/4L60. Chasing after those "numbers" or "model names" is a waste of time, maybe we can actually HELP.
#3
Senior Member
Thread Starter
Join Date: Mar 2007
Location: Muscatine IA
Posts: 574
Likes: 0
Received 2 Likes
on
2 Posts
Car: 91 Firebird Formula
Engine: 383
Transmission: built 700r4
Axle/Gears: 4.11, 9inch
Re: 700r4 vs 4l60
I knew all that already just wanted to make sure the mounts line up. I know they make different cross members for 4l60e swaps. any way his transmission is dead again. slips like a ****. fluid is good and tv cable is adjusted properly.
#4
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,037
Received 1,666 Likes
on
1,264 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 700r4 vs 4l60
I know they make different cross members for 4l60e swaps.
4L60E = 4L60 aka 700-R4, except with electronic instead of mechanical valve body control
No difference whatsoever in anything to do with the trans mount or crossmember.
So yeah, mounts will line up; assuming of course that the trans has a F-body (torque arm) extension housing on it.
#5
Senior Member
Thread Starter
Join Date: Mar 2007
Location: Muscatine IA
Posts: 574
Likes: 0
Received 2 Likes
on
2 Posts
Car: 91 Firebird Formula
Engine: 383
Transmission: built 700r4
Axle/Gears: 4.11, 9inch
Re: 700r4 vs 4l60
Tail housing can be sealed eas . Or get a different torq arm mount. PS they make 4l60e swap cross members for third gen cars when using and ls motor and trans. Those mounts are obviously differen . Didn't know if the Lt cars were too.
Thread
Thread Starter
Forum
Replies
Last Post
[CA] 700R4 trans & parts
6998poncho
Engine/Drivetrain/Suspension Parts for Sale
0
09-25-2015 02:56 PM