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Unread 12-29-2014, 10:38 AM   #1
RRCJR51
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1983 CJ7 
 
Join Date: Dec 2014
Location: Mountain Home, AR
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Tranny Options

I have a 83 CJ7 with a 4.2. I have a SB 350 I am replacing the 4.2 with. My question for anyone is. What Auto Tranny with O/D can I use.

I was told I could not use a 700r. T.his is my first jeep please help

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Unread 12-29-2014, 11:32 AM   #2
ThisGuyUKnow
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1985 CJ7 
 
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Location: Harleysville, PA
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Quote:
Originally Posted by RRCJR51 View Post
I have a 83 CJ7 with a 4.2. I have a SB 350 I am replacing the 4.2 with. My question for anyone is. What Auto Tranny with O/D can I use.

I was told I could not use a 700r. T.his is my first jeep please help
Any OD trans with that was paired with the 4.0 will bolt up to the 4.2. The aw4 is a popular choice but it is very long.
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Unread 12-29-2014, 12:06 PM   #3
CSP
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That's not going to help much with the 350 the OP is swapping in though.

The problem with the 700R4 and 4L60E is front driveshaft clearance around the pan. Both have been done though.

www.novak-adapt.com has lots of info on transmissions you can use.
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Unread 12-29-2014, 01:21 PM   #4
dg6772
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I have the 700R4 in mine. With the proper adapters, it's no problem. You will, as stated, have to deal with driveshaft clearance; but you'll have to get different shafts anyway.

Dave in Muskegon using JeepForum app
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Unread 12-29-2014, 02:54 PM   #5
ThisGuyUKnow
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1985 CJ7 
 
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Location: Harleysville, PA
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Quote:
Originally Posted by dg6772 View Post
I have the 700R4 in mine. With the proper adapters, it's no problem. You will, as stated, have to deal with driveshaft clearance; but you'll have to get different shafts anyway.

Dave in Muskegon using JeepForum app
Sorry i misread his post. For some reason I though he was saying he had a 350 and was putting in a 4.2. Which admittedly I thought was an odd direction to go
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Unread 01-05-2015, 02:40 PM   #6
RRCJR51
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Join Date: Dec 2014
Location: Mountain Home, AR
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So it can be done, That is great news guys Thanks.

Now my next question is. Will I need to beef up the axles? I will be running 35 12.5 X 15, but keep in mind this is not going to be a rock crawler or aggressive trail rig. It will mostly be driven buy my daughter when she turns 16 next year. Now Daddy might hit a few mud holes from time to time.
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Unread 01-05-2015, 09:14 PM   #7
dg6772
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Personally I wouldn't use this as a starter vehicle. I remember doing things back then that would have killed me if I were driving a CJ. But that's just me.....

Dave in Muskegon using JeepForum app
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Unread 01-05-2015, 10:20 PM   #8
Jack61
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1981 CJ7 
 
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Both my kids learned to drive in my Cj. As long as she understands and respects how a Jeep can handle she should be fine. My only question is why a auto. If she learns to drive a manual she can drive almost anything.
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