Transmissions and Drivetrain Need help with your trans? Problems with your axle?

4L60E/4L65E Sanity Ceck

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Old Feb 28, 2026 | 01:55 PM
  #1  
Anthonys434's Avatar
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Car: 83 Z28 Camaro
Engine: 5.3L L33
Transmission: 4L65E
Axle/Gears: GM 12 bolt 3.73
4L60E/4L65E Sanity Ceck

Looking for a sanity check from the power train swap guys.
I have a rebuilt L33 5.3L making 400 hp at the crank. The engine has been converted to the LS6 oil pan and intake with a DBW throttle body.
My plan is to pair the L33 with a 4L60E or a 4L65E due to ease on installation and available SPHON cross-member since I am running their 12 bolt rear end and torque arm.
I'm controlling both the engine and transmission with the Holley Terminator X Max ECU.
On the Terminator X documentation is says that an early model 4L70E is compatible. Does anyone know this year range?
My question is will the full bell-housing 4L60E's and 4L65E's made by B&M and Jegs Performance with the RWD 7.5" tail-shaft work for my application. Hyperlinks below.
Jegs Performance 4L60E
Jegs Performance 4L65E
B&M 4L60E
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Old Mar 1, 2026 | 10:49 AM
  #2  
bk2life's Avatar
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From: az
Car: 91 WS6 GTA
Engine: 5.3
Transmission: 4l60e
Re: 4L60E/4L65E Sanity Ceck

Originally Posted by Anthonys434
Looking for a sanity check from the power train swap guys.
4L60E or a 4L65E
they are the same transmissions
only internal changes are what makes a 4l65..
https://www.hotrod.com/how-to/spotte...-transmissions

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Old Mar 2, 2026 | 10:04 PM
  #3  
84 1LE's Avatar
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From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: 4L60E/4L65E Sanity Ceck

Including the 70e, except they were not used in production cars.
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Old Mar 3, 2026 | 08:28 AM
  #4  
Anthonys434's Avatar
Thread Starter
Junior Member
15 Year Member
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Joined: Nov 2007
Posts: 24
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Car: 83 Z28 Camaro
Engine: 5.3L L33
Transmission: 4L65E
Axle/Gears: GM 12 bolt 3.73
Re: 4L60E/4L65E Sanity Ceck

Originally Posted by bk2life
they are the same transmissions
only internal changes are what makes a 4l65..
https://www.hotrod.com/how-to/spotte...-transmissions
Thank for that link. It was a good read. My main question is, is the 7.5in RWD tail shaft the one I want? Is that the same length that came on the 4th gen Camaros? Thanks
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