will a 258 I6 bolt to a 700r4 without a kit? - JeepForum.com
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Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > will a 258 I6 bolt to a 700r4 without a kit?

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Unread 07-17-2013, 06:20 PM   #1
dezdawn
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1985 CJ7 
 
Join Date: Jul 2013
Location: pensacola, FL
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will a 258 I6 bolt to a 700r4 without a kit?

I have a 85 CJ7 with a 258 I6, and I'm wondering if I can get a 700r4 and bolt it right up? I am new to this, so please help me out

thanks

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Unread 07-17-2013, 06:21 PM   #2
dezdawn
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and if will not bolt right up, is there an auto tranny that will?
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Unread 07-17-2013, 08:37 PM   #3
rjbruzan
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No it will not bolt up. Not to the engine or transfer case. Any auto that will bolt up directly will not be an overdrive non electronic trans. An AW4 out of an XJ is the closest but shifts electronically. At this time there is no store bought stand alone shift assy for it. You would have to build your own.

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Unread 07-17-2013, 10:01 PM   #4
DaemonForce
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It's SUPPOSED to bolt up but I have no idea how the shifting mechanism is supposed to work since it's supposed to have a downshift cable on the passenger side of the assembly. The whole shifting of the thing looks weird to me because of the linkages. I've never considered this transmission because of the endless drama it has caused in other vehicles. What this engine REALLY needs for an automatic is an OD model of the A-904. Maybe you can find some A-512 out of an early Dodge pickup? Not sure if the bell is right though but it's a thought that's been in my mind for a while. Not sure if anyone has ever done it to an Eagle let alone a CJ.
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Unread 07-17-2013, 10:29 PM   #5
Always2L8
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What are you trying to accomplish? Do you want an over-drive? Do you have the gearing to make use of an over-drive? The automatic that came standard in CJ's with the I6's, is the non-overdrive TF999 http://www.jeeptech.com/trans/tf999.html . It is a straight bolt in to the engine and d300 transfer case.

As mentioned the 700R4 does not bolt onto the I6 or D300 without pricey adapters. Go here http://www.novak-adapt.com/knowledge...ge_gateway.htm for excellent information.
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Unread 07-17-2013, 11:08 PM   #6
dezdawn
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ok well I am wanting to make my 4WD standard 3 speed, into a auto 2WD. as easily as possible. what 2WD auto transmissions will fit my 258?
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Unread 07-17-2013, 11:31 PM   #7
DaemonForce
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Uhm, for me it would be easier to keep the 4WD with every Chrysler torqueflite. Concerning 2WD you would be bolting up an A-904 or whatever else AMC had in the Hornet, Concord and Spirit vehicles. Depending on the year of the engine you might be able to use the transmission from a Rambler but that's a serious stretch. All the 2WD transmissions in late Cherokee models aren't all that flexible when going back to a carb'd motor. You're hunting something that does exist, but shouldn't.
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