Tow Capacity
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New User
Joined: Jan 2009
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From: Central Texas
Tow Capacity
1979 F350 400 NP435 Dually Alright, after exhausting myself on this site and the net I'm just going to ask. Does any one know the towing capacity of a 1979 F350? Here's what's on the door sticker: GAWR: 9500 lbs. GAWR: 3400 lbs. (Front) GAWR: 7000 lbs. (Rear) Thanks for the help.
Laughing Gas
Joined: Jan 2007
Posts: 868
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in my opinion (coming from a guy who loads and hooks up anything without hesitation) I wouldn't be worried to hook to dam near anything behind it. Of course i've also had over 3000 lbs in the back of my 78 f150 2wd 300-6 more than once. If its a 4-speed, let er rip, if its an auto, keep it outta OD, theres no better way to toast an OD auto tranny then pulling in OD.
Junior User
Joined: Nov 2008
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1979 F350 4x4 4.10 gears :
Trailer weight 3500-6000
GCWR max 13950
GVWR min 8550
Trailer weight 6000-7000
GCWR max 14850
GVWR min 8550
Those were for conventional towing with a weight distributing hitch. Fifth wheel as follows:
Trailer weight up to 6500
GCWR max 14000
GVWR min 8550
3.54 gears
For 2 wheel drive:
Trailer weight 3500-6000
GCWR max 14300, 15300
GVWR min 8900, 9900
3.73 gears
Trailer weight 6000-10000
GCWR max 17900,18500
GVWR min 8900, 9900
4.10 gears
For fifth wheel:
Trailer weight up to 10000
GCWR max 16400
GVWR min 8900
3.73 gears
The two ratings are for class III and class IV hitches.
This is out of a 1979 owners guide.
Trailer weight 3500-6000
GCWR max 13950
GVWR min 8550
Trailer weight 6000-7000
GCWR max 14850
GVWR min 8550
Those were for conventional towing with a weight distributing hitch. Fifth wheel as follows:
Trailer weight up to 6500
GCWR max 14000
GVWR min 8550
3.54 gears
For 2 wheel drive:
Trailer weight 3500-6000
GCWR max 14300, 15300
GVWR min 8900, 9900
3.73 gears
Trailer weight 6000-10000
GCWR max 17900,18500
GVWR min 8900, 9900
4.10 gears
For fifth wheel:
Trailer weight up to 10000
GCWR max 16400
GVWR min 8900
3.73 gears
The two ratings are for class III and class IV hitches.
This is out of a 1979 owners guide.
Cargo Master
Joined: Mar 2008
Posts: 2,409
Likes: 1
From: Goliad, Texas
well, since it's a dually it should be a chassis cab. I wouldn't be scared of putting 10k behind it. except for trailer sway.
post the info off of the Warranty Plate. it should have the rearend codes on there. when we decode it, it will tell us the gear ratio and axle.
post the info off of the Warranty Plate. it should have the rearend codes on there. when we decode it, it will tell us the gear ratio and axle.
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New User
Joined: Jan 2009
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From: Central Texas
yes, chassis cab would be correct. It was delivered as an unfinished truck to a third party to complete. therefore the door sticker is just a yellow tag that gave all the numbers ive given plus a shorter than usual vin #.
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Thread Starter
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New User
Joined: Jan 2009
Posts: 18
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From: Central Texas
Well a 5th wheel is what I need. It seems I'm on the threshold for a lighter one. which seems strange. I thought the truck would pull a 16k trailer, being a dully.
that rear end is 4:10 btw.
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