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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #11  
Old 11-19-2013, 04:13 PM
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I didn't say I don't believe you, I said I know for a fact there is a difference on the older models. I said maybe there was a change on the newer models (after 2010). I am 100% positive there is a difference between the sump filter and 99.9% there is a difference on the pans on the older models. Whether there's a capacity difference I'm not sure. And to your comment about a 2500 truck I believe that a pan from a 66rfe (transmission behind the ram 2500 hemi) will fit the 545rfe/65rfe (ram 1500 v8 transmission) and is larger capacity.

All you have to do to find out if there's a larger volume pan (even if off an older or different model) is PM transengineer. He's even a hell of a nice guy and will go out of his way to help you out if he can.

Here's a pic of the trans cooler/ac condenser:











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Last edited by snrusnak; 11-19-2013 at 04:15 PM.
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  #12  
Old 11-19-2013, 04:26 PM
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Here's a good pic showing the difference between 2wd and 4wd pans. It does say the 4wd may have been used on some 2wd's as well. Whether or not this changed in the past few years I don't know. You should be able to use this pic to see what pan you have though.

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  #13  
Old 11-19-2013, 06:06 PM
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I have the black stock pan used on the 2 wd and 4X4 trucks by the look of those pics.
Didn't see anything remotely similiar to the deeper pan.
Would that be a 2500's pan?

My cooler set-up is differant then your pic's,but not by all that much.
I have an aluminium block that everything feeds into,then lines go out to the top of the condensor.
The block is where it looks like a factory cooler might be plumbed in,but i stopped at the local dealer,and they show the identical set-up between the 4.7 and the 5.7 part number wise,and no optional cooler available.
The no optional cooler, struck me as odd,as i'm sure when i looked at Audio's 2012 4X4 he had a factory cooler on his,but i could be wrong,as i wasn't looking all that close.
Then again the gal i was dealing with at the local dealer does leave a bit to be desired as a parts girl goes
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  #14  
Old 11-19-2013, 07:33 PM
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Yeah the heat exchanger should be the same. I know some trucks have a thermostat for the transmission cooler, which bypasses the cooler. Maybe that's why the difference...
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Old 11-19-2013, 07:55 PM
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I think the High Efficiency trucks use tranny thermostats,along with shutters to get everything up to operating temp in the first 100ft,lol.

You're up on these things more then me Sean,do you know if there's a factory stand alone cooler available?

I'd plumb a factory cooler into mine if there's one available.
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  #16  
Old 11-19-2013, 08:05 PM
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LOL, well I know at one point transengineer mentioned there are some of the older 4th gen trucks (before the shutters and all that) that had the trans cooler tstats. From the research I've done, and talking with transengineer, all v8 4th gen ram 1500s have identical transmission coolers, so there's no "factory heavy duty cooler" that will bolt right up like was common on the 3rd gens where you could take a HD 1500 cooler and put it on your regular 1500.

I've seen others take aftermarket coolers and add them in, although IMO it's not necessary. Optimal trans temp is commonly referred to as ~180 deg F. My trans temp is normally under 150 deg F. Even towing the heaviest load I've towed(about 5,000lb) up a steep mountain in NC going to deal's gap it only reached about 220deg F IIRC for a short spike. I was giving it about half a gas pedal for 15 minutes straight at around 45mph though, so it's to be expected. I also was towing with a high stall TC which I'm sure contributed some to the heat.

BTW, how many miles do you have? Just curious at what point you're changing your trans fluid. You are familiar there are two filters? I'd highly recommend oem filters, else you can risk having converter drain back as some aftermarket filters don't have a check valve.

I typically change mine at 50k miles just because. I think the manual says 100k. I look at in the way that doing a pan drop(not flushing) exchanges about half the fluid, so doing it twice as often equals out.

I also want to thank you because during searching for those pics above I found a "bolt in" drain plug that NAPA sells. It clamps down to the pan(after you drill a hole) and has a gasket so it doesn't leak. It drains most of the fluid making it much less messy, and it's inexpensive. I'm going to get one next change, and possibly do the same as you and get a larger factory pan. I actually bought an aftermarket aluminum finned deep pan used but ended up selling it. I honestly can't even remember why I decided I didn't want it lol.
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Last edited by snrusnak; 11-19-2013 at 08:12 PM.
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  #17  
Old 11-19-2013, 08:15 PM
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Mine runs quite a bit hotter then yours.

Steady highway driving at 75mph it's usually running right around 192 to 200,alot closer to engine temp then i like.

Sucks that there's no factory cooler available,if i'm adding coolers my perferance is usually a factory set-up.

LOL,i have the same plug,up here they're $8.60 with taxes at my local Napa,how much do they set you back down south.


I'd picked up from posts that there's 2 filters,but thanks i appreciate the heads up.

I'm just under 5,000 miles,i've always been a fan of changing out the first filter and the fluid in the pan,just to flush any crap out that might be floating around.

Diff and motor are on Redline synthetic already,just the tranny left to do
Rick

Last edited by Hornet; 11-19-2013 at 08:22 PM. Reason: add info
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  #18  
Old 11-19-2013, 08:19 PM
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Man that's weird, especially since you're in canada and I'm in florida... That doesn't make any sense lol.

I VERY rarely see even 160-170 deg F, and usually that's only if I've let it idle for 15 minutes or so(I often sit on construction sites).

I even hauled about 1,200 lb up through the mountains to arkansas last year in 115 deg F heat and it never even hit 200 deg F even when going up extremely long and steep mountaints(like 15 minute climbs at 65mph).

When I'm unloaded cruising at 70mph(although I have cruised at 75, 80, heck even 90 before) in the summer heat here it doesn't even get above 160.
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Old 11-19-2013, 08:29 PM
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LOL,up here if you're not doing at least 75,little old ladies are giving you the salute.
Canucks are in a hurry to get nowhere sometimes,lol

I've seen mine at 205 in the mountains running 75/80 mph
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  #20  
Old 11-19-2013, 08:35 PM
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snrusnak snrusnak is offline
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haha I hear you believe me the common speed on I4 here is about 90 mph but apparently there's a spot that has a speed limit of 50mph because I got a ticket a month ago for $280 and 4 points on my license!!!! lol
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