Hi all, I had a F150, 1986 1/2 ton, it was originally this:

300 CID engine + C6 Tranny + 3.23 Dana 44 rear axel + 235/7.5R15 tires

Now:

300 CID engine + E4OD Tranny 4X4 + 3.55 Dana 44 rear&front + 31/10.5R15LT tires

My question is: Ford calculate load range based on truck configuration, so what's my maximum load range for my actual configuration???

Thanks for your help;

 

What have you done to change the suspension?

 

Nothing, front suspension comes from a stock Bronco 1993. Rear suspension is stock. should I do something to suspension?? whats maximun load for Dana 44 and Dana44IFS??

Thanks

 

I think the rear springs are the weak link. Extra leafs maybe or a helper kit if you are going to load something heavy. That engine will haul alot, but the stock 150 springs are just ok. I used to overload mine all the time. The bed would sit really low. I got a ticket twice. Really expensive.

 

Adding some leafs will increase load range but, questions is:

How much load can stand Dana 44 rear axel and Dana 44IFS front axel? Brakes, tranny, drive shafts, etc, etc...

I'm planing load up to 900 Kg, but I want safety firts...

 

My '81 owner's guide says maximum trailer weight 2000-3500# (907-1587kg).
Regular cab, F150 with auto trans, 4.9L engine and minimum 3.25 axle.

 

Yes! that's for Towing but I'm looking for load OVER my truck, any ideas???

Regards;

 

Read your tires' sidewalls for thier max load rating at max inflation pressure. That is your absolute max load rating, you don't want to overload your tires.

Other than that, look on your truck's door sticker and find the GVWR and front and rear GAWR information. That tells you the max amount your truck can wiegh in total and the max amount of weight you can put on each axle.

Then, weigh your empty truck on a scale (truckstop, highway checkpoint, local landfill, etc.). Subtract the scale weight from the GVWR as printed on the door sticker and that is your maximum payload for both axles together. If you weigh the truck's axles individually on the scale, you can subtract those numbers from thier respective GrossAxleWeightRatings as noted on the door sticker to find out how much payload you can carry over each axle.

I don't know that you actually have a Dana 44 rear axle, as F150's usually have either a Ford 9" or Ford 8.8" rear axle. The changeover year was around 1983/84-ish. At any rate, if the rear axle is the same as what the truck had originally, the rear GAWR info on the door sticker applies to that axle.

There is no generic weight rating for a Dana 44 or any other kind of axle as the axle's weight rating depends on it's application. A Dana 44 in the front of a 3/4ton truck will have a different rating than when in the front of a 1/2 ton truck. Same goes for a rear vs front application of the same axle model.

 

Ok I get it !! that's exactly what I was looking for....


Thanks for the explanation: