The life of a Magnum (and 46RE question)

magnummopar said
4.7 is a overhead cammed diamler/mercedes designed POS. That is the highest mile 4.7 I have ever heard of. They are not a comparison to the 5.2/5.9 magnum engines as they are complete junk and you cant put them in anything, nor would you want to. The trans is not a 42/44/46 RE/RH, its a 45RFE which takes its own pcm. They are only slightly more notorious for exploding than the 4.7. The 4.7 is famous for cams seizing in heads,cams breaking in half, cracking heads, they toss rods like angry toddler but at least they make a pathetic 200 hp and get 15 mpg unless you happened to be the unlucky bastard that got the Chrysler "death flash" then it was 10 mpg sitting in the drive way. Ask me how I know:banghead:

Comparing a 4.7 to a 5.2/5.9 is like comparing a turd to a cup cake. Oh, by the way, I dont really like 4.7's ....sorry for your loss.

Really? They're often out here inexpensive with over 370k on them- it's driving all the value out of one to where even near perfect they just aren't worth much. A shade more power than a 5.2, not really much less than a 5.9. The lil 4x I've got with one gets over 18mpg out on the road- it's been over 21 on sustained road trip in the Summer with some sense. They give a bit less trouble than the Hemis which is still plenty. Aftermarket doesn't exist. I won't complain about one in a vehicle but I wouldn't be swapping one into anything except the slim possibility of something with a 4.7/5.7 that I couldn't be bothered to want to change the wiring on and didn't have to spend that much money on the swap.

Abodybomber said
Agreed! I did retail auto parts,a damn long time. Anytime someone called for a reman 4.7, none of the rebuilders ever even had a rebuild able core. What a turd....

A while back they were still selling for around $1000 as runners instead of the $250-600 of most Magnums.

67Dart273 said
Do you know when the vans went from rh to re? Same as pickups, or ??

Yes- far as I know all overdrive vans '96-up are OBD-II. But not all '96-up vans have overdrive. In 360s the latest I've seen was '99 for a 3spd van and apparently they are RH transmissions.

magnummopar said
Vans, rams, dakotas, durangos and grand cherokee switched same year.
OBD I is always RH 1995 older
OBD II is always RE 1996 newer
OBD I was fazed out due to increased EPA regs which mandated all vehicles upgrade to OBD II in 1996.Universal AL/DL(diagnostic) plug on every car , all makes, double O2 sensors, sealed EVAP can/gas caps and a much smarter computer capable of running auto trans.

The RE is controlled by the JTEC and JTEC+ PCM . If you want to use RH with OBD II JTEC you have to find manual trans pcm or get it flashed to remove auto trans code or it will set codes and go into "limp home mode".

You've not seen 3spd vans before? Usually the ones I see are either 3.9s or 5.9s.