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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

T18 to 5speed Question

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Old Dec 11, 2003 | 01:18 AM
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toml98
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Question T18 to 5speed Question

I have a 300 L6 with a T-18 transmission, and I'm looking to swap to a 5 speed. I know that there is a mazda 5 speed that bolts up to the L6. what I don't know is, well several things. First off, is there any difference in bell housing. Also, is there a difference in driveline lenght needed for these two trannys. Also, is the 5 speed compatable with the NP235 transfer case. Thanks for any input.
 
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Old Dec 11, 2003 | 02:40 PM
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Txquadhunter24
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Yes, that Mazda Tranny can be mounted to your I6. The I6 302 and 351W uses the same bolt pattern. But I wouldn't replace the T18 for the Mazda they don't hold up well. If you want to do a 5spd swap look for the ZF 5spd found in F250 and F350 trucks with I6 to 351W. The Tcase will bolt up to it. As for the rest I have no clue.
 
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Old Dec 11, 2003 | 02:53 PM
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thanks for the heads up on durability. do you happen to know the width difference between the t-18 and ZF 5sp. I'm curious because my exhaust has little clearance next to the current tranny.
 
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Old Dec 11, 2003 | 03:01 PM
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I have no clue on that. You might try the Tranny forum lower down or the 87+ forums. I know there is a few old Post about people doing the ZF swap in the tranny forum so they maybe able to help ya there
 
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