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Discussion Starter #1
Hey gang, I'm thinking about buying a 1996 F150 with a M5OD2 manual tranny and a 300ci I6. It also has a manual BW1356 t-case. I would do a SAS on it using an 8 lug HP D44 and a Ford 10.25 or 10.5 Sterling rear axle. It would most likely be running 35" BFGs, but I might consider running 33's if they didn't look too goofy. I would try to keep the lift as low as possible. My question is this, what gears should I install in the axles if I buy this truck? I already have 3.73's in the HP D44, but I haven't found any Sterlings with anything other than 3.55s or 4.10s. It would be mostly just an around town rig, but I would also use it to tow 6,000-8,000lbs on occasion. I was thinking 4.56s, but I want to keep the rpms down if possible. Could I get buy with 4.10s? From what I've read about the 300 it is a torque monster, but low on horsepower. I also understand that and it makes most of its power under 4,500 rpms. What do you all think?
 

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aka: kemicalburns
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first the 300-6 is a strait motor not a v6. gears will depend on what size tire. but i would really consider at least a 4.56 for that setup being the tranny has OD. this way the lower gears would help pep up the motor a bit in the lower gears while towing or passing.
 

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Discussion Starter #4
The 10.5 is a metric axle. Stick with a V-8, 351W and ZF swap.
Thanks, I didn't realize the 10.5 had the metric lug pattern, just knew that they switched somewhere around 98 from the 8x6.5 to 8x150mm.

A ZF swap would be a definite possibility, especially considering the slightly lower ratios and the strength.

I would like to keep the 300 as it only has 87K on it.
 

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the 300 is not a "torque monster". it makes less torque than a 302. For a 6 it might be, but dont listen to that hype.

if you are going to be towing 6000-8000lbs, then forget about that truck. That transmission will crap out in no time under that kind of load and the engine is going to struggle to break 55mph. Go find one with a 351 and an automatic, then swap over to a ZF-5 if you want a manual and you will be set.

and as far as gears go, normally i would say 4.10s would be great but 4.56 would probably be better if you are going to tow thatmuch weight.
 

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thinking about it now, just buy a 92-97 F-350. You won thave to do the axle swaps, you will already be able to find one with a factory ZF, your engine options are even nicer, AND you will be able to fit those 35s with NO lift at all.
 

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Discussion Starter #8
the 300 is not a "torque monster". it makes less torque than a 302. For a 6 it might be, but dont listen to that hype.

if you are going to be towing 6000-8000lbs, then forget about that truck. That transmission will crap out in no time under that kind of load and the engine is going to struggle to break 55mph. Go find one with a 351 and an automatic, then swap over to a ZF-5 if you want a manual and you will be set.

and as far as gears go, normally i would say 4.10s would be great but 4.56 would probably be better if you are going to tow thatmuch weight.
8,000lbs is probably about 2,500 more than I would tow, just trying to roughly estimate what my Ranger and a trailer would be.
 

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1995 XLT SAS w D44 and D60 rear
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thinking about it now, just buy a 92-97 F-350. You won thave to do the axle swaps, you will already be able to find one with a factory ZF, your engine options are even nicer, AND you will be able to fit those 35s with NO lift at all.
What he said. If you are towing around town the expence of a SAS vs a F250/350. I would go with more truck. Why buy a 1/2 and build a 1 ton:doh0715:
 

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id still say you would be better served by an F-350. A 300, especially with an M5 trans, is going ot be very taxed by 35" tires, the added weight of a solid front end/1 ton rear, AND a 6000lb trailer. If you were keeping it stock height that owuld be one hting (even then i would be very leery of that transmission). The F-350 already had the rear axle you are looking for, already has the transmission you would be looking for, and has the power that you will need. And like it said before, on top of everythign else, the damn things will fit a 35" tire on BONE STOCK suspension. That saves you the $500 dollar front axle (and replaces it with a significantly better one), $200 dollar rear, $600 trans, $800 lift kit (and all the time it would take to install all that) and leaves you with the option of a 351, 460, or even diesel. It makes alot more sense IMO.

and you do know that it will look exactly the same, right?
 

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Discussion Starter #11
Well, you've just about talked some sense into me....even at the price I can get it for after the mods it would be about the same price to get a F250 or F350.
 

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formerly Nascarfreak88
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where were did you get the figures for the 302 vrs 300 power?

the numbers i had seen put the I6 at more TQ and less HP then the 302.

but the difference wasnt much, only about 15 or so on each.
 

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I've pulled 6K with my 77 F150 w/ 300 no problem. You won't be going anywhere fast but it will do it all day long. The 300 makes most of its power in the lower RPM ranges and they don't like to be revved very high.

I love my 300, its extremely reliable and its damn hard to kill them.
 

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hmm ok, not arguing. Just curious. Ive seen numbers for both motors where the i6 makes more TQ

The difference is the RPM that the power is made at on the later models. The 6 makes quite a bit more tq at 1500 than the 5.0. The old sh!t might be different.
 

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with 35's and an M50d i'd be looking at 4.86's or 5.13's, whatever the deepest you can get for a 10.25 but not deeper than 5.13 due to the design of teh 44. with a 300 your goal is to have your motor spinning about 2500rpm in 4th gear(1:1) at whatever speed you tow at.

Again, you're probably better off with a 250+, but if you like your truck, why not?

As for 302 vs. 300; in identical trucks the 300 will never perform with the 302 unloaded and the 302 will never compete with the 300 loaded. The 302 has to rev to makes it's power while the 300 makes it off the line.

There is a reason the 302 was never offered in anything bigger than a LD 250 and the 300 could be had in the 350.


Just for comparison I've towed 13K GCVW in RCLB F-150 300-6 with 3.5's and a NP435. Pulled it just fine.
Justin
 

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Isnt the 300's torque curve MUCH flatter and lower in the powerband, which gives the "torque monster" feeling?

I know for a fact the 302 doesnt tow dog shit at low rpm, and they are always geared too high to let it rev up in the powerband.
 
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