Re: {FORGED?} Re: I6 Humpster plan (700R4 vs AW4)

["Jim Blair" <carnuck@xxxxxxxxxxx>]

A: Another thought is to get a '94 or newer Grand Cherokee 4.0L transmission 
(the one that is not AW4) and swap in the '88 to '93 Mopar overdrive trans 
valvebody (hydraulic rather than computer controlled). I haven't done this 
yet, but have been told it's doable by people that did it Mopar to Mopar. 
Getting a custom speedo cable made with ends that match the trans and speedo 
head shouldn't be hard. There was an AC Delco shop up in Abbotsford, BC 
(Canada) that made them up for me when I couldn't find anything stock to 
work.


From: "Jeff Reeves" <jeffr@xxxxxxxxxxx>
To: <mail@xxxxxxxxxxxx>
Subject: {FORGED?} Re: I6 Humpster plan (700R4 vs AW4)
Date: Wed, 2 Mar 2005 10:23:22 -0500
Message-Id: <200503021023446.SM01228@D4JF0F51>

Why would you have to change speedometers? All you would have to do is find
a speedometer cable with the appropriate ends on it to mate the original AMC
speedo to the output on the 700R4. As long as you have the correct (or
close) speedometer ratio gears in the transmission, the speedo should read
correctly.
I wouldn't recommend trying to attach a 4L60 or 4L60E to the 4.0 setup. That
would likely be an unending nightmare. The simplest thing to do would be to
buy a stand-alone controller for this transmission from one of the
aftermarket hot rod suppliers.
Using a 700R4 would be somewhat simple--all you have to do is fabricate a
way for the TV cable to attach to the existing throttle so that the shifts
are regulated.
The 700R4 isn't too bad a tranny if you get one made @ mid 80s-up. The early
ones had some problems that were corrected on later models. They turned out
to be a durable and dependable transmission if taken proper care of. I've
had 3 GM trucks with a 700R4 and I've experienced both the good and the bad.
An extra oil cooler would definitely be a good thing--for ANY automatic
transmission. Heat is the enemy of these units.

Jeff Reeves
Auburn GA
79 Spirit GT
72 Javelin SST
69 Ambassador DPL

Jim Blair, Seattle, WA '84 J10 Black Jack (getting lifted and stroked!), '73 
J4000 304/TH400/QT tow truck http://www.virtualjeep.com

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