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Old 07-30-2006, 08:03 PM   #1
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Ford rear end

I have a 2002 f150 4X4. The door sticker gives me a code of H9 for the rear axle. Does this tell me a gear ratio? If so does anyone know what it translates to?
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Old 07-30-2006, 08:30 PM   #2
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hi goin camping.......

google

'ford axle ratios H9 or some combo......

several ford sites suggest it is......3.55 limited slip

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Old 07-30-2006, 08:38 PM   #3
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try F150 online forums
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Old 07-30-2006, 08:47 PM   #4
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directly from the ford website......

https://www.fleet.ford.com/showroom/...150_Ranger.pdf


you will note mid page, left side the limits for each tranny/gear ratio....
be sure to use the 'conventional towing' chart...

for the 4/4 with a 3.55 i read 7700,7500,7100 depending on cab size....
with a gcwr of 12,500....so subtract the actual wt of the fully loaded truck
and hitch and that gives approx max towing limit...often 80-85% of this figure is quoted...

so 12,500 minus 6500 (gvwr) is 6000lbs...now if the payload is less, trailer can be more...
so if the empty wt of truck is 4600...as you suggested,
that means the payload, hitch, fuel, fluids and so on....plus your tongue weight...
should be within the 6500....

truck ......4600
people.......400
fuel/stuff...400
hitch.........150
tongue.......700
______________
total.........6250
gcwr........12,500.....minus 6250 leaves another 6200 for the trail aft the tongue...

or
truck.....4600
people.....400
fuel/stuff..400
hitch........100
_____________
total........5500
gcwr........12,500.....minus 5500 (loaded truck) that leave 7000lbs for the trailer....
now the trailer in question is approx 5400 empty.....
so keep your water, lpg, and all your stuff...
under 1000lbs for a total of 6400....
which is 90%+ of 7000lbs

anyway ya do it it's close....

cheers
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Old 07-31-2006, 01:09 AM   #5
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Thank you all for your help. With my cab, tire size, rearend and engine my gcwr is 13,000. So we'll pack light and enjoy the journey.
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Old 08-09-2006, 07:34 PM   #6
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My 19' Bambi is only 3400 dry and I tow with a 2003 F-150 with the small V8. Tows like a dream. I am thinking of moving up to the 23' Safari 4200 dry weight, and I think I can still stay at 80%.

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