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  1. J

    Possible diesel in oil crankcase??

    I'll start with my lift pump. I put a brand new one on, but maybe it's defective? By removing the lift pump, will I be able to see a leak/residue? Or just hand pump it and look to see if it's leaking? When I compression tested engine, all cylinders were in the mid 400 range so hopefully it's...
  2. J

    Possible diesel in oil crankcase??

    I just did a zf5 swap and at same time replaced my 6.9 with a supposedly good used 6.9 that had been sitting for @ 5 years or so. Started right up and seems to run good. But I thought I had a valve cover oil leak that was dripping down on exhaust pipe, from exhaust manifold on driver side...
  3. J

    Clutch Kit Suggestions for ZF5 Swap

    I just did a C6 to zf5 swap in my 86' 6.9. Someone told me to use a 6.9, 4speed flywheel behind my 6.9 for balance purposes (bullcrap, you can use the SMF conversion or the 7.3 DMF on the 6.9). I did and modified my clutch fork to compensate for the thinner 6.9 flywheel (I work at a welding...
  4. J

    "Engineering Study Exchange Program" Decal on ZF-5 (1987 F-250)

    Here's my tag from Oct. 31, 1987. My truck is registered as an 88'.
  5. J

    "Engineering Study Exchange Program" Decal on ZF-5 (1987 F-250)

    I resealed my tranny and added another 3+ quarts of fluid through shift hole; and added a good layer of insulation under rubber floor matt. It did help quiet it down in the cab, but when you open the door it's crazy loud echoing off the street, etc. Get your smf conversion done and let me...
  6. J

    "Engineering Study Exchange Program" Decal on ZF-5 (1987 F-250)

    I have the same sticker on my zf5 on my 88' parts truck. I'll look and check dates. I have always wondered what that sticker meant. The truck ran/drove fine when I bought it 10+ years ago. Hudonville, let me know how the solid mass flywheel works. I just did the zf5 swap to my 86' f350...
  7. J

    ZF-6 2WD Conversion to 88' 7.3

    I'll check out what speedo options are available. I'd need a speedo for sure, and would like to use my original location, but could do w/o an odometer. Thanks for info!!!!
  8. J

    ZF-6 2WD Conversion to 88' 7.3

    U2slow, Thanks for the link; it pretty much sums up what needs to be done for zf6 onto 7.3idi. I could make the stepped spacer for the top two bolts, but would send out a SMF to be redrilled to accept a PSD 13" pressure plate, disk, etc. Clutch master/slave could be figured out as well...
  9. J

    ZF-6 2WD Conversion to 88' 7.3

    Lotzastuff, I want the zf6 to have 5 good usable gears + the granny 1st and granny reverse. U2slow, I'm going to check my other truck to see how the 5speed bolts to the 1" spacer and to the block. W/o the spacer, what would the trans bolt to?
  10. J

    ZF-6 2WD Conversion to 88' 7.3

    Putting together a 88', 2WD work truck with 7.3 idi. 1. Will a 7.3-zf6 be a straight bolt in to my 88'-7.3? From scouring the forums, it seems like I would delete the thick, steel plate as the zf6 has a thicker bell housing flange? 2. Can I use the zf6 flywheel/clutch set up on my idi...
  11. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Ok cool!! Thanks guys!! Here are some pics of my modified clutch fork so I can use my thinner, 6.9 flywheel. I spaced everything off the dims from buddy's 88', 7.3+zf5. You can see the even wear on the fork fingers when it's resting on TO bearing.
  12. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Finally got trans and TC in!! Does the TO bearing always ride on the Pressure Plate fingers? My buddies 88' with 5 speed has the TO Bearing riding/touching the Pressure Plate fingers. On my old fords with mechanical linkage, the TO Bearing didn't ride the fingers.
  13. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Got engine in Monday!~!! But what is this vent/screw in deal that goes into the intake pan. I checked my other parts motors and one has solid plug pushed in and other one had dirt filling up the hole were the 3/8'' socket drive goes. 1st pic shows solid plug in parts engine. 2nd, 3rd pic...
  14. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    I was able to press cam gear back on my parts engine with a piece of 7/16-20 all thread and nut/washers. But I'm having real back luck with this swap. When I picked up my flywheel at machine shop Fri, I left my good, less worn lobe on the counter!! hahahaha!!! I just have to laugh about it...
  15. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    TNbrett, you're right! The gear was really tight and I used a puller to remove it. The lobe came off fairly easy. But I used an impact/driver on puller for both pieces. I figure I'd just thread a stud back into cam, then use a coupler nut and washer(s) to press lobe and gear back on. I'm...
  16. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Franklin2, yeah I had my 6.9 flywheel resurfaced and I'm tackling this project next 3 days. Damn!! Did I screw up?!! 6.9 flywheel fit 7.3 clutch set up. Is 6.9 flywheel thinner than conversion flywheel and DMF?
  17. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Well, I pulled the lobe off my parts truck last night. There wasn't an injection pump so wasn't worried about timing. Camshaft gear came off with puller, but was pretty tight. Lobe came off pretty easily (email me [email protected]) for video as it's too big to upload). It didn't seem that...
  18. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    I figure the 6.9 with 4speed came with a solid flywheel, so I'll use my solid, surfaced flywheel on my 6.9 with the zf5; and go with my low mileage clutch kit. So I finally picked up the last of my gaskets to reseal oil pan, timing gear cover, front/rear crank seal, etc. I noticed that my fuel...
  19. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Ok, so I'm finally back at it. You guys are correct; TC from auto and 4speed bolt up to zf5. I sent my 6.9 flywheel out to be surfaced and I might have screwed this up. I have a good/used 88', 11"-clutch disc with 5-spring set up with matching pressure plate which will bolt to my 6.9...
  20. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    So this weekend I pulled my auto, transfer case, and 6.9. Damn, that engine is a beast!!! My C6 has a New Process 208F TC. From my understanding this auto TC won't bolt to my zf5. Well it bolted right up. Only difference I saw is that the splined output shaft on C6 protrudes @ 1.0 inches...
  21. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    No parts shops can confirm that an 87' solid mass flywheel will match with a later year 7.3 clutch kit. I found napa to have a complete kit with SMF flywheel for an 88'. But this kit says it has a 12 1/4" clutch disc. If it's easier to push; great. If the only problem is that it might hit...
  22. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Thanks for the advice. I'm stumped on what year flywheel and pressure plate to use. I understand there are 11" and 12" clutch discs (12" being HD), but will any pre 93' flywheel/pressure plate combo work on my 6.9? Are early 7.3's and 6.9's balanced the same?
  23. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    Rad!! It has an E3 part number and it's a borg warner unit with same type of speedo connection hole. It has a single wire plug on back of unit; what's that for? The seller told me it was a replacement DMF and it does look newer and not worn. But I think I might go with the SMF; less to go...
  24. J

    Will T19 Transfer case bolt to ZF5? (84' Auto to 5-speed conversion.)

    84' F350 dually, auto 6.9, 4x4; converting to 89' zf5. Finally got most/all parts; I think. Bought an 85' f250, 4spd, 4x4, 6.9 parts truck for transfer case, pedal assembly, tunnel shift plate, etc. Purchased an 89' zf5 separately. Haven't ripped everything apart yet, but also replacing...
  25. J

    How to find '99-'03 7.3 4R100 4X4 with PTO

    I have a parts 99' f450 4x4 with trans and xfer case still in frame. 5.4 Motor went bad and I started parting it out. In CA 93420, if interested.

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