Another trans question

Soon I will be installing(with some good help) a low mileage 4L60E from what I believe was a '96 B4U. It may be a dumb question, but is there any difference for a 9C1 4L60E? The only thing Ive found is that the years vary to some extent. Being that its from a '96, going into a '96, there should be no problems. I plan on having the problematic trans built up with a shift kit and such at some point, so I need this to be able to work for now.

My trans will go right in.

Differences:

’94: First year of electronic controls in the valvebody (versus the ’93 4L60, which did not have this). The PCM controls line pressure (holding power and shift feel), 1-2, 2-3 and 3-4 shift points (rpm), and TCC lockup (timing and in the ’95-up models, apply feel). Everything else is done mechanically/hydraulically.

’95: Added a Pulse-Width Modulation Torque Converter Clutch (TCC) apply solenoid to control the feel of the TC clutch lockup (blamed for many 4L60E problems; TransGo HD2-C bypasses this, or you can stake the TCC apply valve in place). Also changed 3-2 downshift solenoid mid-year (see '96, below).

’96: PWM TCC plus a different tailhousing design with new-style Vehicle Speed Sensor (VSS). Also changed the 3-2 downshift solenoid in mid-1995 from TBD to TBD. There was a new manual valve added along with a relief port over the manual valve on the valve body casting with this change. This solved the low/reverse clutch release problem and makes the TransGo manual valve mod unnecessary.

Sounds good. As far as the job goes, Ive never R&R'd a tranny except at school. Its different when its your own car . How long will this job take per say, with the exhaust and cross member removal? Its a good thing theres no rust

Few hrs with hand tools,
6 bolts in the bell housing, Probably the hardest part....
3 15mm torque converter bolts
4 u-joint bolts in the rear end
1 nut in the middle of cross member
I believe it's 4 bolts for the cross member to frame
If you have dual exhaust it will be easier. Just undo the ball/socket where cats meets intermediate's might not even have to come off.
Biggest pita is working on the jack stands and doing the bell housing bolts. I got torches and air tools though just incase the cross member want to be stubborn.

And obviously we have to unhook the electrical plug and trans lines as well

Awesome. Now, if we can get a nice day or a shop with a lift
If your not busy, Id definitely like to swing by and pickup that item you worked on for me

I'l be home all weekend. If Toni feels up to it have her come up with the babe. I'm sure my wife and baby would love to see them. I'm excited about the wagon project now too! Damn rain

I'll text you in the a.m......well, later in the a.m.

This is where the national forum can be very helpful. Joel "Sherlock9c1" did a writeup on the differences between the three years the b-body used the 4L60E.
Some of it is above, the rest can be found here.
http://www.impalassforum.com/vBulletin/showthread.php?t=232098

Ironfistdog wrote:

I'l be home all weekend. If Toni feels up to it have her come up with the babe. I'm sure my wife and baby would love to see them. I'm excited about the wagon project now too! Damn rain

Details NAOW!

Ah soon my friend soon. I'll be posting a thread. Still "ironing"out details. I'm gonna be part of the long roof crowd REAL soon.

Ironfistdog wrote:

Ah soon my friend soon. I'll be posting a thread. Still "ironing"out details. I'm gonna be part of the long roof crowd REAL soon.

When you get to this point, you'll want to get 2 1/2 feet of 3/8" Extentions to access the 6 Bellhousing bolts. JR Pulled my trans out in 57 minutes, without a lift. Of course we've done it 4-5 times

I've installed transmissions in about 15 or so cars, the top 2 I usually do with 6 sided bent wrenches, and the bottom 2 are pretty straight forward....., it's the 2 in the middle that make me wish the car would just fall on me. I will try the 2 1/2' of extensions. Btw CLEAN pic! I'll post the stop watch time When we get to this project . Also for anyone who's interested in transmissions. The link Bill posted above is a great thread. Has all the info on how to interchange 94,95,96 4l60e's good read if you have the time,

Tomz9C1 wrote:

When you get to this point, you'll want to get 2 1/2 feet of 3/8" Extentions to access the 6 Bellhousing bolts. JR Pulled my trans out in 57 minutes, without a lift. Of course we've done it 4-5 times

I can do a tranny removal and install in just under 3 hours on jack stands in the driveway. I have done 6 or 7 of them so far.

The new trans went in today. Thanks to Indigo and pouring rain/thunder and lightning with jack stands and 3 floor jacks to supplement the fact that we didnt have a trans jack. All went well and quick with the two people, basic hand tools,and no problems driving an hour home. Thanks again!