new to bronco

[swampking120]

I live in florida and recently purchased an 88 bronco full size. I striped it down to the running gear as i will be turning this into a swamp/hunting buggy. I have a ford 9" rear end and a dana 44 solid front axle. Im trying to determine exactly what engine, transfer case, and tranny i am working with. I was told it was a 351w but the sticker on the door showed the car having a 5.0 liter engine displacement. Im confused. I don't know much about this car. If anybody with knowledge could inform me as to how i can identify my engine, tranny, and transfer i would greatly appreciate it. Also let me know your opininons on putting 40" agricultural tires to run the swamps. Is my rear end going to handle this? any suggestions and tips would be greatly appreciated.

 

[bobstrat]

the displacement should be right on the intake upper, if it is fuel injected.

the transfer case should have a tag on it.

the transmission pan shape will tell you which trans you have.

C3: 13 to 15 bolts, rectangular pan

C4: 10-by-9-inch pan with 11 bolts. There is also a bulge in the front passenger corner.

C5: Similar pan to C4 but has a **** in the middle.

C6: Rectangular pan that has 17 bolts. Longer on the front and rear than on the sides.

AOD: Similar pan to C4 with corners angled slightly; 14 bolts secure the pan.

4R70W: Pan measures 15 inches long.

E40D: Pan measures 20.5 by 13.5 inches and has 20 bolts. There is also a notch in the passenger side front corner.

 

[swampking120]

the displacement should be right on the intake upper, if it is fuel injected.

the transfer case should have a tag on it.

the transmission pan shape will tell you which trans you have.

C3: 13 to 15 bolts, rectangular pan

C4: 10-by-9-inch pan with 11 bolts. There is also a bulge in the front passenger corner.

C5: Similar pan to C4 but has a **** in the middle.

C6: Rectangular pan that has 17 bolts. Longer on the front and rear than on the sides.

AOD: Similar pan to C4 with corners angled slightly; 14 bolts secure the pan.

4R70W: Pan measures 15 inches long.

E40D: Pan measures 20.5 by 13.5 inches and has 20 bolts. There is also a notch in the passenger side front corner.

Its actually not fuel injected any other ideas

 

[bobstrat]

Its actually not fuel injected any other ideas

firing order is different between 302 and 351, are the plug wires still on?

5.0 1-5-4-2-6-3-7-8

351 1-3-7-2-6-5-4-8

 

[Justshootme84]

The 8th digit in the VIN will tell you what engine caem from the factory. If you don't have the body with the tag, look on top of the passngr-side frame rail, right under the firewall area or by the #2 body mount. The VIN will be stamped into the frame. Auto or manual tranny? Like Bob posted, you have the option of the AOD or C6. The C6 pan is also L-shaped, or has a notch in one corner. T-case will be the BorgWarner 13-56, either manual or electric shift. Front axle is Dana44 TTB, rear axle is the Ford 8.8", and the gear ratios are given in the ID tags bolted to the diffs. There is a trans ID chart in the Tech forum.

40" mud tires is pushing the limits for those 1/2-ton axles, even for the Ford 9" and Dana 44 solid axle. A Sterling 10.25" or GM 14-bolt works great for the rear, with a Dana 60 1-ton front axle. You can upgrade to chromoly axleshafts in the solid D44 front. JSM84

 

[Seabronc]

It is possible that someone replaced the 302 with 351, mine is tahat way. One thing to look at are the width of the intake manifold . A 302 is about 9 inches while the 351 is about 12 inches.

Good luck,

>-

 

[swampking120]

It is possible that someone replaced the 302 with 351, mine is tahat way. One thing to look at are the width of the intake manifold . A 302 is about 9 inches while the 351 is about 12 inches.

Good luck,

>-

 

[swampking120]

Thank you everyone will be taking a closer look tomorow and will report. I'm sure I will be asking for more help down the road. Greatly appreciated.

 

[swampking120]

The 8th digit in the VIN will tell you what engine caem from the factory. If you don't have the body with the tag, look on top of the passngr-side frame rail, right under the firewall area or by the #2 body mount. The VIN will be stamped into the frame. Auto or manual tranny? Like Bob posted, you have the option of the AOD or C6. The C6 pan is also L-shaped, or has a notch in one corner. T-case will be the BorgWarner 13-56, either manual or electric shift. Front axle is Dana44 TTB, rear axle is the Ford 8.8", and the gear ratios are given in the ID tags bolted to the diffs. There is a trans ID chart in the Tech forum.

40" mud tires is pushing the limits for those 1/2-ton axles, even for the Ford 9" and Dana 44 solid axle. A Sterling 10.25" or GM 14-bolt works great for the rear, with a Dana 60 1-ton front axle. You can upgrade to chromoly axleshafts in the solid D44 front. JSM84

Remember that this won't be a daily driver. Used only a few times a year. It seems that there are people out there running on much lighter running gear. And this guy won't ever pass 15 mph and that would never be for more than a mile or two. Normal speed I would say is 5.

 

[Justshootme84]

Remember that this won't be a daily driver. Used only a few times a year. It seems that there are people out there running on much lighter running gear. And this guy won't ever pass 15 mph and that would never be for more than a mile or two. Normal speed I would say is 5.

Yes, there are folks running 40's on the stock axles, but they tend to break more often. My 78 Bronco has 38's with 4.88 gears, and it's common to break a front axleshaft or u-joint just climbing up on the trailer. Since I went to the chromoly's and CTM u-joints, I haven't had any more breakage. The Ford 9" already has a Currie Nodular iron center-section or "chunk" with a full spool, which is stronger than the stock axle. I just recently went thru it replacing the seals, end bearings and brakes that I broke on the last trip.

When you start adding a spool or locker, it puts more stress on the weak links. That's why 1-ton axles are just as good or better of an upgrade than trying to beef up the 1/2-ton pieces. both the 78 and 84 Broncos are offroad-only rigs.

BAck to the engine ID, there is a number code stamped on the block on the lower passngr-side, behind the starter. That will tell you the year model of the block, as well as what it came from originally. JSM84