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#81351 - 09/27/06 06:03 PM Difference in trannys
D Offline
Member 		Registered: 03/02/06
Posts: 1059
Loc: Brooklyn, NY
Whats the difference b/w the 4t60e and the 4t65e. B/c I recently found out that the 97s have the 4t60e and not the 4t65e.
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---Ray Dawson---

1997 Grand Prix GT: ZZP SS M90 Kit--P&P Blower and LIM--3.8" Modular pulley--36# injectors--ZZP Wizair CAI--8.5mm MSD Wires--Autolite 103s@ .052--180* drilled T-stat--Tune Time Performance Tune--ZZP 2.5" D/P w/o Cat--ZZP Stage 1 HV TB--ZZP Power Log & Rear PEM--ZZP Poly Motor & Tranny Mounts--Flowmaster 40 Series Delta Flow Mufflers--Auto Meter Z Series Boost & Oil Pressure Gauges--Aeroforce Interceptor Scan Gauge

New York Metro Club Grand Prix
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#81352 - 09/27/06 06:35 PM Re: Difference in trannys
jjcom Offline
Member 		Registered: 08/12/06
Posts: 464
Loc: USA
The 4T60-E has a slightly smaller torque converters and I think it still is partly controlled by vacuum. The 4T65-E has a slightly larger torque converter and is all eletricly controlled. I don't think there's really too much of a difference in life or performance
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#81353 - 09/27/06 07:48 PM Re: Difference in trannys
drummerboy1307 Offline
Member 		Registered: 04/30/06
Posts: 3201
Loc: Groton, CT
x2, from what I've learned about mine.
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'97 SE with alot of mods
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#81354 - 09/28/06 10:23 AM Re: Difference in trannys
nickgrandprix Offline
Member 		Registered: 05/30/06
Posts: 172
Loc: Stratford Ont
how can you find out what one is in your car
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#81355 - 09/28/06 11:16 AM Re: Difference in trannys
zuulmusic Offline
Member 		Registered: 04/22/05
Posts: 3075
Loc: Cleveland, OH
You know by your model and year.

I'm not 100% sure, but the 60s were used in 3.1L and 97 3.8's. Any 98+ 3.8L will have the 65, with the GTP's having the HD version.
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#81356 - 09/28/06 02:27 PM Re: Difference in trannys
drummerboy1307 Offline
Member 		Registered: 04/30/06
Posts: 3201
Loc: Groton, CT
That is correct ---^
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'97 SE with alot of mods
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#81357 - 09/28/06 07:45 PM Re: Difference in trannys
HercMan(Rob) Offline
Member 		Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
Late model 97s came with the 65. To tell the difference the 65 has an electrical connection on the top and the 60 doesn't.
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#81358 - 09/28/06 11:13 PM Re: Difference in trannys
RooK Offline
Member 		Registered: 03/07/05
Posts: 5158
Loc: Southern KY
00+, all GPs came with the 4t65e. My 3100 has the 4t65e. Unless you have a GTP (different trans code), just pop the trunk and look for the RPO code M15, if I remember correctly. That's the 4t65e.
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'00 GP SE (L67 Swap, XP, Headers, 3.25")
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#81359 - 09/29/06 07:44 AM Re: Difference in trannys
D Offline
Member 		Registered: 03/02/06
Posts: 1059
Loc: Brooklyn, NY
Quote:
Originally posted by HercMan:
Late model 97s came with the 65. To tell the difference the 65 has an electrical connection on the top and the 60 doesn't.
Do you know when they started puttin them in the 97s. I'm going to look and see about the electrical lines, but just wanted to see when they decided to switch it over.
_________________________
---Ray Dawson---

1997 Grand Prix GT: ZZP SS M90 Kit--P&P Blower and LIM--3.8" Modular pulley--36# injectors--ZZP Wizair CAI--8.5mm MSD Wires--Autolite 103s@ .052--180* drilled T-stat--Tune Time Performance Tune--ZZP 2.5" D/P w/o Cat--ZZP Stage 1 HV TB--ZZP Power Log & Rear PEM--ZZP Poly Motor & Tranny Mounts--Flowmaster 40 Series Delta Flow Mufflers--Auto Meter Z Series Boost & Oil Pressure Gauges--Aeroforce Interceptor Scan Gauge

New York Metro Club Grand Prix
www.nymcgp.com
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#81360 - 09/29/06 02:36 PM Re: Difference in trannys
gteisele Offline
Member 		Registered: 08/27/06
Posts: 1333
Loc: New Jersey
i have a 99 gt and thought it had a 4t65e HD.....so thats not true?
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(99 GT),K&N 9" intake,ZZP HV TB(68mm), ZZP PCM,ZZP front powerlog, HV3 intake manifold spacer, 3" DP to SLP exhaust,Comp Cam 801 and springs, MSD ignition,Voltage Booster,black housing headlights with HID kit and halos
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#81361 - 09/29/06 03:43 PM Re: Difference in trannys
HercMan(Rob) Offline
Member 		Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
GTs do not have the HD. They also have a different final ratio. The GT/SE have a 3.29:1 and the GTP with the HD has a 2.94:1
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