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F 650 trans swap

Discussion in 'F450/F550 & 4500/5500' started by Wildbill_81, Mar 19, 2021.

  1. Wildbill_81

    Wildbill_81 Registered User

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    Ok, I know this isn't a 450/550 but I want to build a long haul toy out of a 1999 International 4700LPX....hold on I'll get to the OBS piece in a second. The truck has a powerstroke backed by an allison 4 speed auto. My end goal is a 1993 IDI with banks sidewinder in place of the PS, but want to put a ZF-5 out of a F450 in it. I understand that the MD trucks have a front motor mount and a mid motor/trans/bellhousing mount. I can swap the front mount to the IDI and make a rear crossmember. Any issues with the two points of contact btween the motor/trans and the frame being that far apart? or should I fab some sort of mid-mount off the bellhousing/back of the block?
     
  2. 79jasper

    79jasper Chickenhawk

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    Does it say it is a T444E?

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  3. Farmer Rock

    Farmer Rock just a fella' without a 10mm socket

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    I think you are asking for trouble trying g to put a zf5 in a medium duty truck. The T19 4 speed is a medium duty transmission that was used in the IDI pickups and medium duty trucks before the zf5. Most of the IDI medium duty trucks are backed by a spicer 5 speed manual, and they are tough over built transmissions. If it were me, I would use the spicer 5 speed. What year is the truck, and what are you using it for? Any medium duty transmission is better for the application. The 5 speeds actually have better gear spacing, but it's non over drive if that matters.



    Rock
     
  4. Wildbill_81

    Wildbill_81 Registered User

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    I mis-typed the original post. It's a 1992 International 4700 LPX chassis that originally had a 444TE(powerstroke) and Allision auto. I want to swap my 1993 F350 crew cab body and bed onto the frame with a rebuilt 7.3 IDI motor. The truck will be used as family truckster as well as general pick-up truck/towing tasks. Since I want it as my daily driver, I want a more civilized trans vice feeling like I'm driving a school bus. I have the trans out of a F450 bucket truck so it have the driveline e-brake and the pedal/hydraulic clutch setup from my old '88 F350.
     
  5. ISPKI

    ISPKI Welding/metallurgical engineer/Metalsmith

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    Strange, I didnt think they had powerstroles in 92.

    The transmission out of an F450 (92-97) should be a ZF5. They arent any tougher than any other ZF5 but if it was bolted up to a 7.3 then it should bolt right on.
     
  6. Wildbill_81

    Wildbill_81 Registered User

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    You're right....I'm f'ing up fast and picking up speed. Just looked at the title, it's a 1995 (too many trucks to keep track of).
     
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  7. 79jasper

    79jasper Chickenhawk

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    That's why I asked if it specifically said T444E. Lol

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  8. ISPKI

    ISPKI Welding/metallurgical engineer/Metalsmith

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    It's all good, been a crazy year and change, I certainly won't judge ya for hittin the sauce a little early.

    So a 95 would have an N47 ZF5, higher torque rating. I believe they did put 7.3s and ZF5s in some medium duty trucks so it should handle it and mount just fine. Not sure if there is any difference in gearing, I think that was only the 460 gasser.
     
  9. Wildbill_81

    Wildbill_81 Registered User

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    My biggest concern is the mounting. I have the S-47 ZF-5 out of an F450 with the trans mounted parking brake. With the factory front engine mount and then fabricating a rear trans mount, there is a lot of unsupported distance between them. Unlike having the front motor mount and the SAE style bellhousing mounted to the frame. Any recommendations? My first thought is fabing a plate and mounts to connect the bellhousing to the frame.
     
  10. ISPKI

    ISPKI Welding/metallurgical engineer/Metalsmith

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    Every ZF5 I have ever seen only has the rear transmission mount.
     
  11. ISPKI

    ISPKI Welding/metallurgical engineer/Metalsmith

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    Actually, every manual transmission I have ever seen, pulled, and/or swapped has only ever had the rear mount. I was under the understanding that the bellhousing bolts were more than sufficient to hold the rest of it.
     

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