250 to 350 whats needed
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If you want to increase the practical carrying capacity I think it is just springs. Remember a factory F-350 is going to carry a higher GVWR/GCWR sticker on the door jamb than a F-250. There is no way to change this sticker on your truck. If by some very rare chance a commercial vehicle trooper or trial lawyer was checking to see if your towing set up was in the GVWR/GCWR limits recommended by Ford upgrading the springs really wouldn't help. Practically speaking the stiffer springs will help. Bed, frame, rear, axle, wheels and tires are the same truck to truck. If I remember correctly the front 4x4 axle in a '99 and up is a solid Dana 50. I believe the DRW 4x4 F-350s get a Dana 60. I'm unsure what a SRW F-350 would have. And don't forget to order the F-350 badges.
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Late in the 2001 model year, the only difference between the F-350 SRW and the F-250 with otherwise identical options was the standard tires.
But early in that model year, there were other differences, including rear springs and rear axle.
If your pickup has code "B" rear springs, then you already have the same springs that came on the F-350 SRW. And about the same time Ford changed the rear springs, they also began installing the same rear axle in both F-350 SRWs and F-250s.
But if your pickup has code "A" rear springs, then you need to change the rear spring packs, rear axle, and tires. Tires should be LT265/75R16E, or bigger tires with a weight capacity of at least 3,415 pounds. The rear spring packs should be Code B rear springs. Even better would be to add the Ford auxiliary (overload) springs to the Code "B" rear springs, which increase the weight capacity of the rear springs by 518 pounds.
If you have code "A" rear springs, then you probably have the F-250 rear axle instead of the F-350 SRW rear axle. You can't tell by just looking. To be sure you should replace your rear axle with the entire third member off of a wrecked '99 thru '04 F-350 SRW in a junkyard.
Then install Firestone RideRite airbags in the rear suspension and you should be good to go. Just don't get stopped by a State Trooper that might check out your GVWR on the Federal Certification label on the lower doorpost behind the driver's door. /ubbthreads/images/graemlins/crazy.gif
Oh, and because of your top-heavy load, you should have the big anti-sway bar installed in the rear suspension. There were two different sway-bars that year. One was about one-half-inch diameter, and the good one was about one inch diameter. You want the thick one - if you don't already have it.
But early in that model year, there were other differences, including rear springs and rear axle.
If your pickup has code "B" rear springs, then you already have the same springs that came on the F-350 SRW. And about the same time Ford changed the rear springs, they also began installing the same rear axle in both F-350 SRWs and F-250s.
But if your pickup has code "A" rear springs, then you need to change the rear spring packs, rear axle, and tires. Tires should be LT265/75R16E, or bigger tires with a weight capacity of at least 3,415 pounds. The rear spring packs should be Code B rear springs. Even better would be to add the Ford auxiliary (overload) springs to the Code "B" rear springs, which increase the weight capacity of the rear springs by 518 pounds.
If you have code "A" rear springs, then you probably have the F-250 rear axle instead of the F-350 SRW rear axle. You can't tell by just looking. To be sure you should replace your rear axle with the entire third member off of a wrecked '99 thru '04 F-350 SRW in a junkyard.
Then install Firestone RideRite airbags in the rear suspension and you should be good to go. Just don't get stopped by a State Trooper that might check out your GVWR on the Federal Certification label on the lower doorpost behind the driver's door. /ubbthreads/images/graemlins/crazy.gif
Oh, and because of your top-heavy load, you should have the big anti-sway bar installed in the rear suspension. There were two different sway-bars that year. One was about one-half-inch diameter, and the good one was about one inch diameter. You want the thick one - if you don't already have it.
ok ...probably have the a codes 1360 lbs squats my truck 3 inches....so i have a date with deaver springs...they are goung to put 2 springs on the bottom and 1 more at the overloads...he said it will be more stout than a f350 more like an f400 if there were such a thing....now you have me worried about my axil,,,,but before you said they are rated at 6000...and im at 5800- so i should be good right ?? and also sway bar tell me more about that....
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[ QUOTE ]
...now you have me worried about my axil,,,,but before you said they are rated at 6000...and im at 5800- so i should be good right ??
[/ QUOTE ]
F-250 rear axles were rated at 6,084 pounds @ground. F-350 SRW rear axles were rated at 6,830 pounds @ground. If your rear axle GAW is 5,800 - including hitch weight - then no problem.
[ QUOTE ]
and also sway bar tell me more about that....
[/ QUOTE ]
I've told you about all I know.
If you don't have a rear sway bar, or if yours is only about one-half inch diameter, then install an aftermarket rear sway bar from http://www.hellwigproducts.com/
...now you have me worried about my axil,,,,but before you said they are rated at 6000...and im at 5800- so i should be good right ??
[/ QUOTE ]
F-250 rear axles were rated at 6,084 pounds @ground. F-350 SRW rear axles were rated at 6,830 pounds @ground. If your rear axle GAW is 5,800 - including hitch weight - then no problem.
[ QUOTE ]
and also sway bar tell me more about that....
[/ QUOTE ]
I've told you about all I know.
If you don't have a rear sway bar, or if yours is only about one-half inch diameter, then install an aftermarket rear sway bar from http://www.hellwigproducts.com/
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