Seems like my jeep has developed some problems. Originally I had a 302 HO from an 88 or 89 Lincoln mark 7 backed by a T5 and Dana 300. I just switched to a NP435.

I found an 86 F250 with a 302. I took the bellhousing and flywheel and clutch from the F250. Bolted it all to my 435 and 302 thinking the b/h and flywheel came from the same donor so it "should" work with my set up. Solved the clutch issues in my jeep. Started it up. Developed a shake that was never there before.

My question is are all 302 flywheels of the 80's balanced the same? That is the first thing that crossed my mind or am I missing something else? I know the truck flywheel is bigger than the T5 one.

Thanks for any insight.

81 and older 302's used the 28oz imbalance.
82 and newer 5.0L used the 50oz imbalance. I call 82 and newer 5.0L because that's when a few other changes took place, such as going to the one piece rear main, and relocating the dipstick to the block.....but the 302/5.0 thing will always be debated.

Anyway, you should have the right flywheel. It could be a clutch pressure plate thing. What kind of vibration are you getting....while driving? Certain RPM? How are your motor mounts, and tranny mount? u-joints?

It could be possible that the the truck motor was older than you think.

it took about 10 seconds with the search button to find yer answer.:rolleyes:


Maybe you should try it!!!

but here's the skinny........ you need to have yer new flywheel rebalanced to 50 oz.

86 should be FI and a 50 oz balance, did you pull it or see the truck? Was it FI? I am looking for a flywheel at the moment for my HO motor and T-18, the local Ford dealer says that he can't find out weight and tooth count with a Ford part # so I am searching the internet for the info myself and if I find it you could check yours if you have a part #.

Member #17421 how do you know he has a 28oz flywheel :confused: According to what he posted, he should have the correct 50oz flywheel aready :rolleyes:

Thanks Nobody. Although I didn't see the truck the junkyard dude "said" it was an 86 so I figured it should be the same.

I just put the rig together and started it the the jiggy started. Seemed like it was mostly at idle when it started shaking but seemed to go away at higher rpm???

Going to put the driveshaft in tonight and check it out driving. Really don't want to tear the bearings out if it is shaking too bad. I will check al the mounts again and see if there is any contact with thenew setup anywhere. Maybe I overlooked something.

One last dumb ass question. Is there any markings or way to tell which flywheel I may have?

Thanks for the info!

Check out the pictures here.

http://bronco.alloffroad.com/flywheel.html

Sounds to me like your motor is firing irratically, maybe timing, vacuum leak, ignition, uneven compression, etc..... I've never been unlucky enough to run a motor with the wrong flywheel, but I think it would get worse at higher RPM.

Pull the starter and look at the part number on the block. That will eliminate any question on the year.

Glad you sent me to that site. At least now I know what I am looking for and after a quick look I can say that my flywheel does not have that cast in weight as shown in the picture so i guess the junkyard sold me the wrong one :rolleyes: go figure! It has the right tooth count and bolted on so who knows what it came from!

As for the numbers cast on the block: 28 E7TE CA S and the tag is 7A28.

the cast numbers on the flywheel are C6AE 6380- C, the tag is 8C9 and hard stamped is E0TE-BA.

Any ideas where to check, besides on this board, to find out the meaning of the numbers?

Well I gave up the wrecking yard search and went to Napa and bought a flywheel for an 87 F150 with a 5.0 I don't know how it could be wrong, I have been told by many people it is the correct application and it makes sence because it's FI, 5.0, 164 tooth takes the 11" clutch.
Well the good part is the flywheel is $55 but the core is $115 so that sucks and the box clearly states unless it has the casting #
E8TR AA
KE4 710
E1TE AA
that the core is not acceptable so I would defiantly stick to one of those #'s
I figure for $170 it's way better than the stealership price of $410 but still a boat load of money for a flywheel.
I hope this helps you and if I would have seen this I would not have been so worried about a junk yard part and I would have bought one for $75.

If your flywheel doesn't have a weight at all, then it is from and ford 300ci inline 6cyl. Those had the neutral balance flywheels but share the same bolt pattern as a 302.

I don't recommend having it balanced. You're better off getting a reman somewhere. I was very pleased with the flywheel I got from www.tomsbroncoparts.com

I'd be a bit ticked at the junkyard, but it also could have been an honest mistake if they weren't knowledgable about fords.

Originally posted by DamnJeep

the cast numbers on the flywheel are C6AE 6380- C, the tag is 8C9 and hard stamped is E0TE-BA.

This is the wrong flywheel. The casting number (C6AE) is for 1966 and the part number (E0TE) is for 1980 truck. Either way it is no good for your application.

Hey 'Nobody'... He had the classic signs of the wrong balance, this is all too common in the 5.0L swap fest world.

That's why I sugested he get it rebalanced or do a search for more info. I did a quick search (5.0 and balance) found tons of guys with the same problem.

The other thing that tipped me off here was that nothing else on the motor had changed.... the only difference to the motor itself was the flywheel. So what else could it have been?????:flipoff2:


Please stop calling the 5.0L a 302. they are vastly different

Originally posted by sodaboyYJ

Please stop calling the 5.0L a 302. they are vastly different

I thought that the 5L was Canadian and the 302ci was American due to the metric system, now I am confused :flipoff2:

Classic signs, yes did you know for sure no, maybe making it sound like fact when it is not is the problem, but who cares now he knows what the problem is.

Are you sure the flywheel came from a 302 and not a 351 because the 351Ws have the same imbalance as the earlier 302s. And 302s and 351s look very similar........:rolleyes: Oh, and 5.0 liters 5,000cc (or what ever you want to call it) = 302 cubic inches.:rolleyes: They're basically the same motors. Other than roller cams and EFI they ARE the same:eek: Oh, maybe I shouldn't refer to as a 351w:eek: it's a 5.8:D

Yeah. As soon as I started it my first thought was the flywheel and i remembered reading, here or maybe Chris Waterman's site, about havin the wrong balance flywheel BUT I was under the impression that any mid 80's truck one would work in my application which is why I asked the question if the 80's wheels would work because at that point I thought that is what I had. In this case the yard gave me the wrong one and I went back today and they exchanged the wrong one for another no problem. Thanks to the pictures I knew what to look for this time and have the right one. Cleaned it up and installed tonight and fired up with zero vibes! Back in the game.

I'll let y'all debate the 5.0-302 thing. My junk is working now and that's all I need to know!

Thanks for all the help.

Originally posted by DamnJeep

I'll let y'all debate the 5.0-302 thing.
Who's going to debate it? I was just screwing around with that and if anyone needs to know the dif between a 302 and a 5L (yes there are a few like balance) just search.

Glad you got it going, did you happen to notice the casting number on the one you got?

MAKE SURE IT"S AN 11" CLUTCH, 1987 F-150's had both 10 1/2" and 11" clutches depending onthe GVW. Just some FYI