RE: FW: Jeep 4.0 in an American?

["Widiker, John D" <john.widiker@xxxxxxx>]

I'm currently buying up pieces to do it in my '71 Javelin, still not having
much luck finding an aw4 2wd up here in MI. The 700r4 swap I'm planning
caught a few neg comments but for me (I've used them before and like them)
it still makes sense. GOOD Luck Ben!!! Keep us posted. 

~John

-----Original Message-----
From: farna@xxxxxxx [mailto:farna@xxxxxxx] 
Sent: Tuesday, April 19, 2005 8:31 AM
To: mail@xxxxxxxxxxxx
Subject: Re: FW: Jeep 4.0 in an American?


That's what I'm doing Ben! I was one of the first to drop a 4.0L in an older
Rambler, in my case a 63 Classic wagon, which I still drive (but with a
stroked 4.0L -- now 4.6L). It's not a hard job, you just need EVERYTHING
attached to the computer wiring harness from the Jeep and wiring diagrams
for the Jeep model and your car. One hint: don't cut the Jeep harness at the
firewall connector. Pull the screw out of the center and pull it instead.
It's hard to get to with the brake booster in place (remove it!), but worth
the effort. Then you can get the pin-out for the connector from the local
Jeep dealer and find the wires easier. The connector is in two halves once
pulled -- one half has mainly lights, the other engine stuff. The engine
half will have a few ancillary items like the windshield wipers on it, but
those are easy to find and can be cut. No, you can't reduce the wiring any!
I traced every @#$@$#% wire when I did mine thinking I could cut some of it
down. Was a waste!  d effort! 

You can use any 72 or later transmission, but you're better off to use the
Jeep trans that comes with the engine. 2WD versions are pretty common down
south, and the AW4 automatic is as bullet proof an auto trans as you can
find (at least behind sixes and small V-8s -- Lexus V-8 models use it but
have a couple more clutch discs than the 4.0L application). If you use a
trans that wasn't designed for the 4.0L you either have to modify the bell
for a CPS (crankshaft position sensor) and flexplate for the TF converter if
an auto. HESCO makes a $250 or so kit to move the CPS to the balancer
(includes a new balancer machined for the sensor) now, which makes things
much easier. Advance Adapters has one that's a bit cheaper, but only for the
90+ HO engines. HESCO makes one for the 87-90 Renix system and 90+ HO. 

If you're using the AW4 make sure you get the trans, engine, and controls
from the same vehicle. 87-95 Jeeps have the trans controller separate from
the engine controller. Trans controller is mounted on the panel under the
glove box. 96+ has an integrated engine/trans controller (PCM - powertrain
control module). The 96+ also uses an electronic speedo. IIRC it uses an
adapter in the trans and a speedo cable can be used. If you use custom
gauges any aftermarket electronic speedo will work with the factory sensor. 

On April 18, 2005 Benjamin Lowe wrote:

> I've got a chance to buy a '65 American with a run out flathead, and I 
> was toying with an idea that Mark Montoni and I threw around some 
> years ago: putting in a Jeep four-liter and using it as a fairly 
> modern driver.  I just thought I'd throw it open to the group for 
> y'all's thoughts... Ben Lowe Jacksonville, Florida
> "Temporarily between AMCs..."
> 
> 
> 
> 
> 
> 
> .


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