Flywheel part number help
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5th Wheeling
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Flywheel part number help
Hi, thanks for looking.. I'm in need of a little help/advice on what flywheel and clutch will fit my 1965 f100 300 cid 4x4 with a T18 in a T98 case. The rusted out flywheel that I removed is pn-C5TE-6380-B, which from the web searching I've done, is a HD flywheel from a larger Ford truck, though maybe they were installed in the 4x4's? Anyway, I'm trying to figure out what my next plan of attack should be since I can't seem to find any info on an updated part number for it or any info on what part number is the correct application for the truck in the first place and also where to buy one, so any help would be greatly appreciated.
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I'm in need of a little help/advice on what flywheel and clutch will fit my 1965 F100 300 I-6 4x4 with a T18 
in a T98 case.
The rusted out flywheel that I removed is ID engineering number: C5TE-6380-B .. which from the web searching I've done, is a HD flywheel from a larger Ford truck, though maybe they were installed in the 4x4's?
in a T98 case.The rusted out flywheel that I removed is ID engineering number: C5TE-6380-B .. which from the web searching I've done, is a HD flywheel from a larger Ford truck, though maybe they were installed in the 4x4's?
No part numbers marked on parts after 1956, just casting or ID engineering numbers, when applicable.
C5TZ-6375-B .. Flywheel - 184T Ring Gear / Use with 4 & 5 speed M/T's with 12" clutch / Marked: C5TE-6380-B / Obsolete
1965/78 F500/600 240/300 I-6.
----------------------------------
C5TZ-6375-P .. Flywheel - 164T Ring Gear / Use with 3 & 4 M/T's with 11" clutch / (6) 5/16" -18 pressure plate attaching holes on a 12 3/8" bolt circle / Obsolete
1965/66 F100/250 4WD & F350 240/300 I-6 // 1965/67 E100 240 I-6 // 1965/76 P350/500 240/300 I-6 // 1969/74 E100/300 240/300 I-6.
btw: The correct 4 M/T for 1965/72 F100/250 4WD's is the New Process 435, the Warner T-18 was only installed with 2WD
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5th Wheeling
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Ok, thanks for the info, any chance that you might know where to source a new one of the flywheels you listed? Can't for the life of me find anything.
I've researched the NP 435 and cannot find a picture or anything with the cast bosses to accept the transfer case shift lever and short output shaft with no tailpiece. The only transmissions that I can find with the bosses and no tail piece are T18's. Not sure what's going on but short shaft from trans to transfer case doesn't look to be modified.
I've researched the NP 435 and cannot find a picture or anything with the cast bosses to accept the transfer case shift lever and short output shaft with no tailpiece. The only transmissions that I can find with the bosses and no tail piece are T18's. Not sure what's going on but short shaft from trans to transfer case doesn't look to be modified.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
C5TZ-6375-P .. Flywheel - 164T Ring Gear / Use with 3 & 4 M/T's with 11" clutch / (6) 5/16" -18 pressure plate attaching holes on a 12 3/8" bolt circle / Obsolete
1965/66 F100/250 4WD & F350 240/300 I-6 // 1965/67 E100 240 I-6 // 1965/76 P350/500 240/300 I-6 // 1969/74 E100/300 240/300 I-6.
1965/66 F100/250 4WD & F350 240/300 I-6 // 1965/67 E100 240 I-6 // 1965/76 P350/500 240/300 I-6 // 1969/74 E100/300 240/300 I-6.
The first flywheel I listed is the one you typed the engineering number of (C5TZ-6380-B) of, it's the WRONG flywheel.
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5th Wheeling
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5th Wheeling
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The mystery deepens... I'm still trying to get to the bottom of the basket case I'm dealing with here. Here's a couple of pics of the bell housing and adapter plate for the six cylinder engine. Can anyone say whether this bellhousing and adapter plate is OE to the 1965 f100 it's currently residing in or what year and vehicle it may be from? The bell housing and transmission mounts do not look modified. The t98 trans has 1 offset mounting flange at the bottom left in pic. Thanks for looking.
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