Help with a new (to me) truck

When it comes to D'max you either want the '06-early '07 ("cat-eye" body style, not the new body '07.5) or you want a '11+.  The '06-early '07 are the LBZ with a 6-speed Allison, prior to '06 it was a '05 speed which was a little weaker in some areas, and various different versions of the D'max (LB7, LLY).  People love the LBZ because it got a power bump, has a cat but no DPF, and like I said got the 6-speed.  '07.5-10 were the LMM which *would* be another great Duramax, but it got a DPF and I'm not a fan of the regen strategy (injecting fuel on the exhaust stroke).  '11+ is the LML, which saw an upgrade to the 6-speed Allison, a completely new frame (even though the cab and bed look nearly identical to the LMM generation, inside and out), bigger brakes, beefier suspension/steering components, etc.  The downside of a LML is it did add DEF, but at least it has a sane regen strategy (9th injector in the downpipe, low pressure).  The L5P came around in '17 and got a good power bump, but those are going to be spendy trucks.

-TJ
You post the most useful information on this forum!  Anytime you post, I find myself compelled to read every word of your posts…something I don’t do.  I also typically bookmark them.  
 

You’re fasho invited to the carne asada here in Knoxville (and FL when my place is finished) if you ever find yourself out this way.   :cheers:

 
Born in raised in OC.. 15 miles from the beach.. forgot about salt.. yeah .. it DESTROYS vehicles.

abc

PS. OK so mine would be worth more..  :rofl:
My place in Mazatlan is .5 miles away from the beach.  We have a beater commuter CRV parked there (covered but not garaged) that absorbs tremendous abuse from the salt in the air.

 
How much weight are towing or plan to tow? Maybe this was covered earlier in the thread but I didn't see it. One thing to consider if you go Ford is to really look at the different tow ratings. In earlier model years there was virtually no difference between a F2500 and F350 except a taller block in the rear end. In 2017 when Ford went to the Aluminum body this all changed. The tow rating difference between the F250 and F350 changed substantially.  So just do your homework and make sure you get what covers your needs. 

I'm a life long Ford guy too. My Grandpa was a service manager for Ford, my dad was Ford all the way and that's the trucks I drive too. I had an 02 F350 with 7.3 diesel for like 12 years. It was a great truck and I kept it because I knew the 7.3 would just about run forever. In early 2018 I decided it was maybe time for a change and I come across a deal on a 2017 F350 with the 6.7 Powerstroke that only had 800 miles on it. I bought it and am really happy I did. The difference in power and trans gearing with the 6 speed just can't compare to the old 7.3. And the creature comforts in my fully loaded lariat are fantastic. I think my favorite thing other than the power difference is the adaptive cruise control. My F350 is not a daily driver so it only has about 44k miles on it now. I hope to keep it for a long time. 

I think the difference between diesel and gas really depends on how much you drive and what you plan to tow. It's pretty easy to do some math and figure the cost difference for the MPG difference. 

 
You post the most useful information on this forum!  Anytime you post, I find myself compelled to read every word of your posts…something I don’t do.  I also typically bookmark them.  
 

You’re fasho invited to the carne asada here in Knoxville (and FL when my place is finished) if you ever find yourself out this way.   :cheers:
Awww shucks, you're making me blush!  But, is "carne asada" code for something?  Now I'm scared. 😉  Seriously though, thanks for the kind words... I enjoy writing this stuff and am always pumped when folks find my ramblings useful. 

-TJ

 
How much weight are towing or plan to tow? Maybe this was covered earlier in the thread but I didn't see it. One thing to consider if you go Ford is to really look at the different tow ratings. In earlier model years there was virtually no difference between a F2500 and F350 except a taller block in the rear end. In 2017 when Ford went to the Aluminum body this all changed. The tow rating difference between the F250 and F350 changed substantially.  So just do your homework and make sure you get what covers your needs. 

I'm a life long Ford guy too. My Grandpa was a service manager for Ford, my dad was Ford all the way and that's the trucks I drive too. I had an 02 F350 with 7.3 diesel for like 12 years. It was a great truck and I kept it because I knew the 7.3 would just about run forever. In early 2018 I decided it was maybe time for a change and I come across a deal on a 2017 F350 with the 6.7 Powerstroke that only had 800 miles on it. I bought it and am really happy I did. The difference in power and trans gearing with the 6 speed just can't compare to the old 7.3. And the creature comforts in my fully loaded lariat are fantastic. I think my favorite thing other than the power difference is the adaptive cruise control. My F350 is not a daily driver so it only has about 44k miles on it now. I hope to keep it for a long time. 

I think the difference between diesel and gas really depends on how much you drive and what you plan to tow. It's pretty easy to do some math and figure the cost difference for the MPG difference. 
My current setup is about 9k lbs. But with an opportunity for more I may switch to a fiver in the future. We’ll see. I drive about a mile to the office so gas mileage isn’t a make or break. I get about 10mpg so if it’s more it’s welcomed 

 
Bought this 01 8.1/Allison 2 wheel drive bout 8 years ago for 10k got about 5k in power steering pump, carrier bering, stereo system, and basic maintenance. Tow a pontoon few time a year to the river and 24’ enclosed mid size travel car and dirt bikes few times a season no problem but gas mileage. I have a company truck for daily driving, so it’s sits a lot Iv put 15k on it over the 8 years. Seems like the gasser stores/sits better, had an 08 Dually dmax I didn’t drive enough to burn the exhaust so I had to run it just to clear the fault. And the 01 has a cassette player, a very nice option IMHO. 

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My current setup is about 9k lbs. But with an opportunity for more I may switch to a fiver in the future. We’ll see. I drive about a mile to the office so gas mileage isn’t a make or break. I get about 10mpg so if it’s more it’s welcomed 
Something that I took into account is this. With a bumper pull you can get 14-16’ feet of toy storage. Then if you buy a long bed you can get another 8’. 
You will have to get a really big (heavy) 5th wheel to be able to carry as many toys. 
 

Yes everyone hates bumper pulls and think they tow like chit. But that is usually a set up issue or trailers with axles placed to far forward. 
Lots of pros and cons to not only the truck but trailer as well. 

 
Something that I took into account is this. With a bumper pull you can get 14-16’ feet of toy storage. Then if you buy a long bed you can get another 8’. 
You will have to get a really big (heavy) 5th wheel to be able to carry as many toys. 
 

Yes everyone hates bumper pulls and think they tow like chit. But that is usually a set up issue or trailers with axles placed to far forward. 
Lots of pros and cons to not only the truck but trailer as well. 
It actually has to do with leverage and where the pivot point is on the truck.

 
It actually has to do with leverage and where the pivot point is on the truck.
Yes Those are factors. But that does not mean bumper pulls can not handle correctly. 
 

The pivot point with a fifth wheel is much more forgiving with an improper setup. Bumper pulls when setup wrong will let you know in a hurry. 
 

Which takes us right back to pros and cons like I mentioned. 

 
When it comes to D'max you either want the '06-early '07 ("cat-eye" body style, not the new body '07.5) or you want a '11+.  The '06-early '07 are the LBZ with a 6-speed Allison, prior to '06 it was a '05 speed which was a little weaker in some areas, and various different versions of the D'max (LB7, LLY).  People love the LBZ because it got a power bump, has a cat but no DPF, and like I said got the 6-speed.  '07.5-10 were the LMM which *would* be another great Duramax, but it got a DPF and I'm not a fan of the regen strategy (injecting fuel on the exhaust stroke).  '11+ is the LML, which saw an upgrade to the 6-speed Allison, a completely new frame (even though the cab and bed look nearly identical to the LMM generation, inside and out), bigger brakes, beefier suspension/steering components, etc.  The downside of a LML is it did add DEF, but at least it has a sane regen strategy (9th injector in the downpipe, low pressure).  The L5P came around in '17 and got a good power bump, but those are going to be spendy trucks.

-TJ
Personally, I would rather have the LMM with a proven CP3 pump and not have to add DEF, vs the LML that requires you to add DEF,  and also have to worry about the CP4 pump shelling out the entire fuel $ystem.  Both are great trucks.

 
Personally, I would rather have the LMM with a proven CP3 pump and not have to add DEF, vs the LML that requires you to add DEF,  and also have to worry about the CP4 pump shelling out the entire fuel $ystem.  Both are great trucks.
I get it, and it's certainly a personal preference thing.  If it were just the engine/trans changes, I might agree.  But with the entirely new frame front to back, wider leaf springs, much bigger front suspension and steering components etc. I Like the LML gen.  

-TJ

 
How much weight are towing or plan to tow? Maybe this was covered earlier in the thread but I didn't see it. One thing to consider if you go Ford is to really look at the different tow ratings. In earlier model years there was virtually no difference between a F2500 and F350 except a taller block in the rear end. In 2017 when Ford went to the Aluminum body this all changed. The tow rating difference between the F250 and F350 changed substantially.  So just do your homework and make sure you get what covers your needs. 

I'm a life long Ford guy too. My Grandpa was a service manager for Ford, my dad was Ford all the way and that's the trucks I drive too. I had an 02 F350 with 7.3 diesel for like 12 years. It was a great truck and I kept it because I knew the 7.3 would just about run forever. In early 2018 I decided it was maybe time for a change and I come across a deal on a 2017 F350 with the 6.7 Powerstroke that only had 800 miles on it. I bought it and am really happy I did. The difference in power and trans gearing with the 6 speed just can't compare to the old 7.3. And the creature comforts in my fully loaded lariat are fantastic. I think my favorite thing other than the power difference is the adaptive cruise control. My F350 is not a daily driver so it only has about 44k miles on it now. I hope to keep it for a long time. 

I think the difference between diesel and gas really depends on how much you drive and what you plan to tow. It's pretty easy to do some math and figure the cost difference for the MPG difference. 
Great points. I had a '13 that was a F250 knowing it basically was the same as the F350. I went with the F350 in '17 since there was a difference starting with that MY.

I always found it interesting that Ford offered an option to de-rate the F350 starting in '17 for those states that licensed by GVW. Same damn truck that they just changed the stickers on reflecting a smaller GVW at extra cost.

 
It sounds like you have a good understanding of the cp4 and the damage it could do..   The cp4 has no shelf life it can grenade at 2k miles or never be a issue..  Unfortunately with the shitty Design of how the pistion can rotate any time on the cam its just a matter of when.. Lift pumps might help alittle but will not stop a cp4 from grenading.We all know the reason why chevy, Ram,Ford went back to the Cp3 pumps due to they last and issue free.. 
When did Ford go back? 

 
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So in doing more research of the CP4 issues, it seems as though one of my choices being the '15-newer 6.7L all have a CP4. They used an electric lift pump which the LML did not, so that's a plus. But now has me rethinking that option

 
So in doing more research of the CP4 issues, it seems as though one of my choices being the '15-newer 6.7L all have a CP4. They used an electric lift pump which the LML did not, so that's a plus. But now has me rethinking that option
If you're not open to having a CP4.2 then you can rule out '11+ Duramax, '15+ PSD, and a few specific year Cummins (but TBH I forget the exact years).  There are millions and millions of CP4.2 trucks out there, the failure rate is actually super low.  It is a nightmare IF it does fail though.  So, IMHO I'd just replace the CP4.2 if you get a used truck with one, and make sure you have a lift pump and added filtration (and a good fuel additive doesn't hurt).  Just factor that cost into your budget, like I said I spent ~3k when I had my CP4.2 replaced, but I had TONS of other stuff replaced at the same time (all stuff that I'd want replaced on any decade-old truck, like water pump, hoses, belts, pulleys, etc.). 

-TJ

 
Only 2019 and 2020 Cummins have the CP4. 2003-2018 and 2021+ are good to go. 

 
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