TomP

...does anyone know the model # of this transmission? (Like 700r4, etc..?)

He just had it replaced last year, and said yesterday it's slipping & not catching, and that it won't downshift when he floors it. I thought "TV cable", but I don't know if his FWD trans has one. Oh it's a Pontiac Bonneville, by the way, I think '87 or '88?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

Apeiron

4T60E? Should be electronic.

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1984 Camaro Z28 Astral Silver w/ 2 1/2" cowl induction hood
Engine: Decked 383 cid 4 bolt w/ oil cooler, 9.6:1 compression, ARP fasteners, 600 cfm Performer carburetor, Torker II intake, Performer RPM Heads, XE268H cam, Magnum roller tip rockers, MSD6AL ignition, Blaster2 coil, recurved HEI distributor
Exhaust: Terminator headers, Custom 3" TIG welded stainless exhaust, Twister muffler
Transmission: 4L60 w/ Corvette servo, .500 boost valve, TransGo 7-CS clutch springs, 700 PKH pump rings, 700-2 reprogramming kit, Borg-Warner High-Energy frictions & bands, 2400 RPM lockup torque converter
Drivetrain: 2.73:1 limited-slip Dana 44 w/ disc brakes
Tires: Front P225/50VR15 Rear P265/50VR15 Eagles

Apeiron

Oops, thought you said 97 or 98. 4T60 then, non-electronic, don't know if it has a TV cable or not.

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1984 Camaro Z28 Astral Silver w/ 2 1/2" cowl induction hood
Engine: Decked 383 cid 4 bolt w/ oil cooler, 9.6:1 compression, ARP fasteners, 600 cfm Performer carburetor, Torker II intake, Performer RPM Heads, XE268H cam, Magnum roller tip rockers, MSD6AL ignition, Blaster2 coil, recurved HEI distributor
Exhaust: Terminator headers, Custom 3" TIG welded stainless exhaust, Twister muffler
Transmission: 4L60 w/ Corvette servo, .500 boost valve, TransGo 7-CS clutch springs, 700 PKH pump rings, 700-2 reprogramming kit, Borg-Warner High-Energy frictions & bands, 2400 RPM lockup torque converter
Drivetrain: 2.73:1 limited-slip Dana 44 w/ disc brakes
Tires: Front P225/50VR15 Rear P265/50VR15 Eagles

82camaro

It has a kickdown cable.


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82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro

TomP

4T60 with a kickdown cable, eh? Thanks for the info! Is this trans pretty close "inside" to our 4L60, but just sideways?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

Apeiron

T is for Transverse and L is for Longitudinal, but they are pretty different.


4T60-E
Hydra-matic Transmission - 1999

Product Specifications


Type:
Four speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with electronically controlled torque converter clutch

Engine Range:
2.4L - 3.4L

Maximum Engine Torque:
280 lb-ft (380 Nm)

Maximum Gearbox Torque:
400 lb-ft (544 Nm)

Gear Ratios:
1st 2.921
2nd 1.568
3rd 1.000
4th 0.705
Rev 2.385

Maximum Speed Shift:
1-2 6400 rpm
2-3 6400 rpm
3-4 5200 rpm

Maximum Gross Vehicle Weight:
6400 lb (2903 kg)

7-Position Quadrant:
P,R,N,OD,3,2,1

Transfer Design:
2-Axis design, link chain assembly

Case Material:
Die Cast Aluminum

Control Systems:
Shift Pattern: (2) Two-way on/off solenoids
Shift Quality: Vacuum modulator
Torque Converter Clutch: Pulse width modulated solenoid control

Converter Size:
245 mm (reference) (Diameter of torque converter turbine)

Fluid Type:
Dexron III

Transaxle Weight:
Dry: 81.0 kg (178 lb.)
Wet: 92.1 kg (201 lb.)

Fluid Capacity (Approximate):
Bottom Pan Removal: 7.0L (7.4 qt)
Complete Overhaul: 9.5L (10.0 qt)
Dry: 12.7L (13.4 qt)

Pressure Taps Available:
Line pressure

Manufactured:
Warren, MI


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1984 Camaro Z28 Astral Silver w/ 2 1/2" cowl induction hood
Engine: Decked 383 cid 4 bolt w/ oil cooler, 9.6:1 compression, ARP fasteners, 600 cfm Performer carburetor, Torker II intake, Performer RPM Heads, XE268H cam, Magnum roller tip rockers, MSD6AL ignition, Blaster2 coil, recurved HEI distributor
Exhaust: Terminator headers, Custom 3" TIG welded stainless exhaust, Twister muffler
Transmission: 4L60 w/ Corvette servo, .500 boost valve, TransGo 7-CS clutch springs, 700 PKH pump rings, 700-2 reprogramming kit, Borg-Warner High-Energy frictions & bands, 2400 RPM lockup torque converter
Drivetrain: 2.73:1 limited-slip Dana 44 w/ disc brakes
Tires: Front P225/50VR15 Rear P265/50VR15 Eagles

five7kid

iTrader: (14)

Great info, Apeiron. However, he said '87 or '88 Bonneville. That will be a 3.8 liter V6.

I think they're called 4T60 in '89's - '91's (what I've personally owned - suffering from brain fade). I think the '85's - '88's were TH125C, and I know they were famous for being weak (based on my dad's experiences), whatever they were called.

The designation is stamped into the pan, by the way. Put it up on ramps or jack it up and you'll see it.

[This message has been edited by five7kid (edited December 19, 2000).]

Apeiron

Yeah sorry, could only find the exact info on the 4T60 E, but it should be the same as the 4T60 except for the electronic control. It only shows applications up to 3.4 L because the current 3.8 cars are using the 4T65E.

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1984 Camaro Z28 Astral Silver w/ 2 1/2" cowl induction hood
Engine: Decked 383 cid 4 bolt w/ oil cooler, 9.6:1 compression, ARP fasteners, 600 cfm Performer carburetor, Torker II intake, Performer RPM Heads, XE268H cam, Magnum roller tip rockers, MSD6AL ignition, Blaster2 coil, recurved HEI distributor
Exhaust: Terminator headers, Custom 3" TIG welded stainless exhaust, Twister muffler
Transmission: 4L60 w/ Corvette servo, .500 boost valve, TransGo 7-CS clutch springs, 700 PKH pump rings, 700-2 reprogramming kit, Borg-Warner High-Energy frictions & bands, 2400 RPM lockup torque converter
Drivetrain: 2.73:1 limited-slip Dana 44 w/ disc brakes
Tires: Front P225/50VR15 Rear P265/50VR15 Eagles

[This message has been edited by Apeiron (edited December 19, 2000).]

Danny P 86Z28

It is probably the 440T4.

Apeiron

440T4 is the old name for the 4T60 isn't it?

Anyway, there were a LOT of recalls for those transaxles, you might get lucky and find out it's a well known problem.

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1984 Camaro Z28 Astral Silver w/ 2 1/2" cowl induction hood
Engine: Decked 383 cid 4 bolt w/ oil cooler, 9.6:1 compression, ARP fasteners, 600 cfm Performer carburetor, Torker II intake, Performer RPM Heads, XE268H cam, Magnum roller tip rockers, MSD6AL ignition, Blaster2 coil, recurved HEI distributor
Exhaust: Terminator headers, Custom 3" TIG welded stainless exhaust, Twister muffler
Transmission: 4L60 w/ Corvette servo, .500 boost valve, TransGo 7-CS clutch springs, 700 PKH pump rings, 700-2 reprogramming kit, Borg-Warner High-Energy frictions & bands, 2400 RPM lockup torque converter
Drivetrain: 2.73:1 limited-slip Dana 44 w/ disc brakes
Tires: Front P225/50VR15 Rear P265/50VR15 Eagles

TomP

One problem though; any recall wouldn't matter. His original trans was replaced by a rebuilt one. He says it's acting just like his other one did before it died; now he's left with only 1st and 2nd, no more 3rd and 4th.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

KS91Z28

I had to rebuild the tranny in the wife's Oldsmobile. It was a 4T60E. It was doing the same thing as your friends tranny is doing. I went through it 3 times before I found that the valve body had a hairline crack in it.