Those with a 4L60E....
#1
Those with a 4L60E....
I currently have 91 Firebird with a 3.1 V6 engine.
I plan on getting a tubular k-member for my ls1/4l60e swap. What I was wondering if I would need to get a transmission crossmember as well. I have been told that the 3rd gen one will work, but I wanted to get conformation so that I am not missing anything major when the engine/trans go in. Thanks in advance.
I plan on getting a tubular k-member for my ls1/4l60e swap. What I was wondering if I would need to get a transmission crossmember as well. I have been told that the 3rd gen one will work, but I wanted to get conformation so that I am not missing anything major when the engine/trans go in. Thanks in advance.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You either need to modify the 3rd gen tranny crossmember, or buy a swap crossmember.
The LS1 4L60E mount is in a different place than all predecessors.
The LS1 4L60E mount is in a different place than all predecessors.
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Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: Those with a 4L60E....
here's a shot of my first one:
my buddy had welded a longer than necessary tab onto mine (forgot to make all measurements before i passed it his way for welding). however, should give you a good idea what you need to do.
actually getting rid of this one too, since pocket was nice enough to include another modified one with his old y-pipe
my buddy had welded a longer than necessary tab onto mine (forgot to make all measurements before i passed it his way for welding). however, should give you a good idea what you need to do.
actually getting rid of this one too, since pocket was nice enough to include another modified one with his old y-pipe
Last edited by 1ADan; 05-25-2011 at 01:23 PM.
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Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: Those with a 4L60E....
I went with a factory 3rd gen 700r4 dipstick & tube; wish I hadn't given mine away when I pulled the original trans, but oh well. It's a pain to get in place unless you put it in the trans before installing everything into the car
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Re: Those with a 4L60E....
There is another option. You don't have to use the late 4L60E. Instead, the early 4L60E, like '94-'95, still mounts like the 700R-4.
It brings a different set of issues.
'94-early-'95 has no PWM, which is a good thing, but must be tuned for. Late '95 has PWM, but still installs like a 700R-4.
However, these early versions don't come with that black box at the shift stub which passes through the case. You have to do a bit of adapting there, or some more tuning.
These early 4L60Es don't have a removable bellhousing, and their tailshaft housing is the exact same as the later 700R-4, with 4 bolts, not 6.
It brings a different set of issues.
'94-early-'95 has no PWM, which is a good thing, but must be tuned for. Late '95 has PWM, but still installs like a 700R-4.
However, these early versions don't come with that black box at the shift stub which passes through the case. You have to do a bit of adapting there, or some more tuning.
These early 4L60Es don't have a removable bellhousing, and their tailshaft housing is the exact same as the later 700R-4, with 4 bolts, not 6.
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Car: '89 GTA
Engine: 5.7L LS1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: Those with a 4L60E....
You may regret getting the spohn crossmember later if you like having ground clearance....as for the dipstick tube I would recommend getting the lokar one as I will do that here soon because things got tight right were it comes up. But for length I would say make some measurements for yourself, although I don't think you have much choice in lengths?
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Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: Those with a 4L60E....
i used a stock 3rd gen dipstick and tube and just tapped the back of my block for the mounting bracket that's on the dipstick tube
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Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Re: Those with a 4L60E....
I used a 94 4L60E It uses the stock 3rdgen cross member. I also used a stock thirdgen tube and drilled out the mounting hole bigger on the tube and tapped the transmission mounting hole and used a short bolt.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I used the factory 4L60E dipstick & tube.
Not the clearest pic, but you can see the red handle/lock above the intake manifold.
Not the clearest pic, but you can see the red handle/lock above the intake manifold.
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