Oh that came out wrong. Lol

i meant that the intake wouldn't be fun to ship. If i found a 96 Eddie Bauer with the 5.8 and good interior I would absolutely make a road trip out of it.

 

Well, white has been screwing with that engine/truck for a little while now. He's learned as much about it as I and then some. Brave enough to real time that nightmare.. That engine is Fords 3V Darky....cursed with all kinds of black magic. That didn't change until 2007.5. That's why it was talked about, - whites tasting it lol.

 

LOL.... and it tastes like poooop!

I just read this, and my heart sunk into my gut. Was not aware of some of the roller block (F4TE casting) 351's getting cracks on the #2 and #4 cam bearing journals. Not sure if the bolt to hold the spider for the lifters was over-torqued, or what the hell happened. But I am going to pull the cam out of mine before I proceed. Otherwise, a 302 is going to be getting a lot healthier.

https://forums.corral.net/forums/5-0...lock-guys.html

Did you know about this AK?

 

Thanks for the list man, looks like it's to 01. That doesn't matter though, sheds a lot of light. Surprised to see a 4.10 was available for the 8.8 in 98 and 99. And there was a 3.08 for the 9.75. Not common , but I wonder which 150's had that option and reasoning.

Yes , that will help much. It's been taking some custom searching to find correct info, there's much assumed and incorrect out there.

The most important info obtained thus far was from you and white. That article white posted boasted a quick history of the 9.75's. Your post about axle and bearing diameter changes support that article. In combination, the mid 01 - 03 9.75 F150 assembly's are the safe bet and preferred. So I'll get after 2002 - 2003 LS assembly.

Entertaining the thought of 3.73's but that's very doubtful. Finding a team of those in good shape at a worthwhile cost would be a gift. Chances of a decent 3.55 are much better.

Anyway, thanks guys, saved me a bunch work narrowing down the options and knowing exactly what to look for.

 

AK- researched the booster thing, located some good info from both forums and after market. Too many links to list lol, here's what I got from it, -

Reason Ford found it critical to update/upgrade the booster in 99. It's most definitely a volume thing which has made it priority (for me anyway) to invest in it. The larger booster affects both, - larger calipers (7700's, Expy and Nav) and disc in the rear. From what I gather, I believe the matching master may be of a larger bore as well. I haven't confirmed that yet, but I'm going to do both at this point. - Larger booster and matching master.

Larger pistons/calipers in the front (big brakes) demand much more vacuum volume (air assist) from the booster. Combined with the addition of calipers in rear, which require more pressure vs the original factory wheel cylinders makes the demand even higher . The 97/98 boosters are severely lacking for this set up as they do not have near enough volume to keep up with applied pressure.

Since the Expy/7700 swap, I really haven't driven the 98 much. The braking seemed to be fine stopping normally to moderately hostile. But there was the one occasion last fall where I almost missed the coffee shop turn off. I hit them hard, pumped once , hit them again and they let go. Not a total let go, but enough to realize something still isn't right. I pointed the finger at the pads since I was running hybrid pads at the time. Combination pads, metallic ceramic mix. I don't think that was the problem.

So it looks as though I missed a very important step making this swap in the past. I wasn't aware just how much the booster played a roll in this. If you recall, everything is new in my system except for the booster, -the master is recent as well and fluid was flushed during the swap. Another supporting factor. I've dismantled the front brakes twice in the last year so that the rotors/ pistons wouldn't rust from sitting. No signs of excessive heat or glazing. If it were the pads, you can always see glazing. Nope no signs of that.

So, without proper volume from booster, you can apparently loose caliper pressure when it matters most. Which can make a big brake swap utterly useless, perhaps even worse than before the investment.

 

Yeah.... I can tell a really big difference in the pedal on my Expy in comparison to the F150. The sumbitch is heavier, and stops way way easier. The brakes are bigger, yes, but not THAT much that it would make as big of a difference as I can feel. Only thing that added up to me was the dual diaphragm booster.

Took the cam out of the 351 tonight.... I can only see number 2 cam journal, but don't want to take the bearing out with it still somewhat assembled. It is not cracked on the sides. I think it will be fine.... I'd have to knock out the back freeze plug to see journal/bearing 4. Wasn't that motivated tonight, lol. Took one head off, and the cylinder walls still have cross hatching in them.

 

That might have something to do with it, your referring to normal braking. My concern revolves around them being there in an emergency and towing. This is what Ford decided to do for 99, this is with the ordinary run of the mill F150. The addition to the brake system here was disk brakes for the rear....same size front disc brake set up as the 97/98. Look at the size diff, quite a bit more than double, -



Anyway, that's what I mean by volume if your not following the explanation earlier. As said, has to be necessary. They wouldn't just do this for kicks lol. When converting a pre 99 to both the larger Expy front brakes and disc in rear, this is a necessary part of the puzzle. Otherwise your putting yourself and others in harms way. It doesn't happen often, but it will eventually to some degree. I got a little taste of that when they let go after a quick one pump stop. That knocked the wind out of that little booster lol. Well, anyway, see what I'm saying ?

AK has both upgrades on his 98, I will soon. After what I read today, playing it safe, updating the booster along with the rear end (to disc) swap.

 

Looks like I have a bad hub. I noticed when turning right that the hum i get from my tires disappears. I mean they go silent. I jacked up the front wheels one at a time and even though I have no side to side play I am getting a low roar.

I'm back and forth between moog and Timken assemblies. What do yall use?

 

I think you are on the right track Jbrew.

My 1997 F250 light duty is similar to your truck, front disc / rear drums but it came from the factory with the larger brake booster. It even still has the factory tag on it that says F-250.

 

I think so as well. That makes sense, you most likely have larger brakes on that truck vs the 150, 99% sure. Which would spec a larger booster. Crap, wish I would of looked into this sooner. Not too late though, kids going to be driving the truck, going to do it up right. Thanks!