E-Series VansTechnical discussion of topics related to vans powered by any of the Navistar engines. This covers a broad number of years, but there isn't enough demand to split it any further.
have a 2004 e350 w/6.0 and 3.73 non full floating rear end. The van weights around 11,000 lbs mainly in the back. I bought a differant rear end that is a full float with a ratio of 3.55. My plan is to switch over to dual wheels and beef up the leaf springs.Did I blow it by buying this rear end or will the ratio not be that big of a deal.
I also pull a trailer some times that weights around 7,000lbs
Thanks for any advice
rick nelson
Also just bought a 98 e350 dually with the 7.3 motor and a utility box and love it.
also whats the deal with the little faces and the instant ubb code?
That's like putting bigger tires on your rig. It's only 5% different. When I put 35's on my truck, it was like 10%. If you're worried, put smaller diameter tires.
__________________ 2003 F250 XLT 4x4 Sport Crew Cab,
Built May '03, Bright Red, 6.0 Auto, ESOF 4x4, 3.73LS, 4.5" Edge Lift, 315/75-16 BFG KO A/T's, Polished/Clear Powder Coated Diff Covers, Weld Cheyenne 8 Wheels, Line X, Overhead DVD, Torza Tonneau Cover, 30' Fleetwood Gearbox Travel Trailer
I did not know 3.73 was even available in a diesel van.
What year did it become available?
As far as i know it is 4.10 or 3.55 with a diesel, as far as a 7.3 goes. Maybe with the 6.0?
I think that the problem you will face is that with the 3.55 gearing, the 6.0 won't be in it's power band at cruise.
The 6.0 likes to breathe. While the 7.3 is quite happy chugging away at 1800 rpm, the 6.0 is more of a 2200 rpm animal. I think that you're going to be lugging it at highway speed, especially if you go with anything over the stock tire size.
Towing will probably have to be with the OD off, unless you're in the plain states, heading east.
Don't get me wrong.......the truck will run, it will cruise, and it will tow. But if you want to get a couple o' hundred thousand miles out of a diesel, you have to make it work. They like to work.
__________________ 2005 E350 Standard Cargo Van, 6.0 PSD, 4.10 L.S., Quigley 4X4 New on 11-18-05
(seems to manufacture oil...)
Warranty Turbo 7-07 22,000 miles, Warranty A/C compressor 10-07 25000 miles
2003 E350 Extended Cargo Van, 7.3 PSD, 3.55, Quigley 4X4 New on 2-1-04 Some Pix New Pix 9-12-2010
Transfer Flow 46 Gal*Delaminated*Replaced 8-06 UNDER WARRANTY 7.5' Western Snow Plow
BTS Tranny 9-29-07 @55,000 miles, Aluminess Bumpers, Mile Marker 12,000 pound hydraulic winch
2000 F250 ...... just cuz people are dumping them for the fuel bill. Got mine on ebay for $8749 with 116K on the clock.
1-1-09 BTS Tranny, 500+ HP at the rear wheel
It would make me think. Not that i do it much. [img]/ubbthreads/images/graemlins/blush.gif[/img]
Why has the rear or rear gear been changed? (3.73) [img]/ubbthreads/images/graemlins/shrug.gif[/img]
But to tell the truth i think the 3.73 would be perfect for the diesel van.
I've been running 3.73 since day one with 35's. I didn't go with the 4.10 because I wanted to take advantage of the diesel torq...shift and pull. If I went to 37's I d go to the 4.10. The gearing on my van is specific to my fuel and air setup.
__________________
Hypermax stage 2 injectors, 4" intake with Ram scoupe, QSSB Turbo, Snow Meth inj, BTS trans no spacer, Salem Kroger 4x4, Sway and traction bars, APX drivers seat, 4" straight exhaust & DP, 4" lift, 18" wheels with 325 nittos, custom valve Bilsteins, DP PCM and F5
...Stuff to make it almost as fast as a pickup.
[ QUOTE ]
I've been running 3.73 since day one with 35's. I didn't go with the 4.10 because I wanted to take advantage of the diesel torq...shift and pull. If I went to 37's I d go to the 4.10. The gearing on my van is specific to my fuel and air setup.
[/ QUOTE ]
Blizz
Your 01 came from the factory with 3.73?
Kroger changed?
What axle do you have up front? (4X4)
Dana 60 up front and it came from the factory a 3.55. Kroger installed reluctantly, they were used to putting in 4.10 in vans.
__________________
Hypermax stage 2 injectors, 4" intake with Ram scoupe, QSSB Turbo, Snow Meth inj, BTS trans no spacer, Salem Kroger 4x4, Sway and traction bars, APX drivers seat, 4" straight exhaust & DP, 4" lift, 18" wheels with 325 nittos, custom valve Bilsteins, DP PCM and F5
...Stuff to make it almost as fast as a pickup.
Quote:
The van weights around 11,000 lbs mainly in the back.
Unquote
You're referring to GVWR; right?
To answer a couple of questions: When I ordered my '99 E-350 in '98, I ordered it with 3:55 gears. I could have ordered it with 3:73's or 4:10's but I chose the 355's for fuel economy.
When the rear end had to be replaced, I contemplated moving up to 3:73's, but the Ford Service Manager told me that the vehicle had been built as a package. To change the gears, would cause problems with other computorized systems.
So, as I've recommended before about OEM systems, if you're in doubt, talk with a Ford Tech. We can change a lot of things on these diesels, but there are some things that should thoroughly researched to include advice from Ford.
To answer a couple of questions: When I ordered my '99 E-350 in '98, I ordered it with 3:55 gears. I could have ordered it with 3:73's or 4:10's but I chose the 355's for fuel economy.
When the rear end had to be replaced, I contemplated moving up to 3:73's, but the Ford Service Manager told me that the vehicle had been built as a package. To change the gears, would cause problems with other computorized systems.
[/ QUOTE ] 3.73 was not an option for you with a diesel motor in an E350. People change tire sizes and gears all the time without any "computer" issues.
Hi toalpi; I can't argue with nor dispute what you posted. You may very well be correct. I'm basing my information about the availibility of gears on the list of options provided to me by the salesman when I ordered it, and 3.73's were available. And the service manager at Red Simon Ford in San Marcos, TX told me that I could put them in when the rear end went out, but he did not recommend it. This was not a warranty job, so I can think of no reason for him to recommend against it unless, in fact, it would create a problem.
There's a lot of knowledge and experience on this board and some of you can do just about anything to a diesel vehicle. I like to do my own work but there's a lot that I can't do. One thing is for sure, I won't make any modification that a Ford Service Technician recommends against.
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