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Spin the V10, it will pull. 5,000rpms is nothing for it. You have to adjust your expectations. No. It won't pull hills like my diesel trucks will. Will it get me to the top, sure. Again, if you want to run 80mph up an 8% grade pulling 8,000lbs at 10,000' get the Powerstroke if you like Ford...

I think it would do fine unless you expect it to run up 8% grades at 80mph hauling 8,000lbs at 10,000 feet. That's why God invented 500hp turbo diesel F450 pickups my friend.

I'd try what I suggested before a new cat.

I think the E450 would be fine even with a 2v V10 with the 5r110 and 4:56 gears, which is probably what it has. Towing an F150 4 wheels down...doh. get it on a car hauler and be done with it. 7,000lbs would be fine. The NA motor would be slow in the mountains but so would a 6L Chevy.

It's probably on the verge of failing of the cat. Put a bottle of Redline SI-1 in an empty tank, fill it up and run it in a lower gear and get the rpms between 4k-5k will several full throttle runs from 40-80mph for 30 minutes. A failing cat can get hot and still pass. Does it burn oil

I'm just looking for numbers. Do I need to update it? How do it find that PID?

Bob, is that in Torque Pro? What app do you use? I want this bad for my 6.7 Powerstroke.

We used a truck like that to haul hay growing up. It was a T19/Carbed 460 with 4:10s. It was fine as I can remember. Slow by today's standards but as a 14yr old kid, i thought it was a haus.

I am going to order a good bit of Redline 15w40. This will tie me over for a few years. The RL 15w40 has been very good to my equipment. I will look for a deal and jump. I try not to pay more than $12/qt or $48 a gallon. I've been fairly good at it. It has a very very good additive package...

I got a call this morning from Ted at P66. He said it is being done and should be soon. A company that responds is rare anymore, props to them.

A "426 Hemi" would be cool in a 3/4 ton.

Just faulty parts..

Is it related to the mds? I was just aware it was the 5.7. I thought the 6.4 had a higher volume oil pump and it wasn't an issue. I've recommended the 6.4 over the 5.7 just for that reason. Some of those people have over 200k on their trucks and no oil related issues. One couple uses their 3500...

Interesting. So they are infact different? That shoots my temp and tuning theory down. I'm done. I'll see myself out.

I'm not totally convinced that's true if GM uses the same transmission. It might be marginal parts that GM with their software and cooling strategies figured out how to keep it together. Otherwise GM 10spds of a few years ago would be plastered all over the internet as junk. That simply...

So that would put my theory of cooling as a probability then. If GM took the Ford designed transmission and changed the software and runs it cooler. GM doesn't have NEAR the drum and valve body failures as Ford does. If it's the same transmission physically, tuning and temp are the key...

No, the 6.4 is still used in the 2500/3500 Ram. I think it will be there for some time unless they come out with a bigger motor like a motor "Legend" like GM and the 6.6, people associate it with the durability of the Duramax and 500k mile LBZ. The 7.3 gas Ford was picked because it rang...

I have a theory about the drum failure as well as the valve body issues. The fluid heats up and thins out causing wear. The GM trans run a lot cooler and the issues seem to be Waaay less, almost nonexistent.

Aren't these transmissions co-developed? They use the the same fluid. I don't have a graph in front of me but I would wager the GM's fluid is a bit thicker at temp since it is cooler. Can this be the source of the CDF bushing issues. It seems like it's a wear issue, then the bushing slips out...

You said something that makes me ask a serious question. The GM trans runs ~160-175*, much cooler than the Ford 10r80 of 30* or more. Could GMs strategy of keeping the trans cooler than Ford be the key for Ford's issues of the 10R? Is it heat related. Wilson, how hot does your 10L1000 run...