“87 inline 6 manual swap
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4wd Low
Joined: Oct 2023
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“87 inline 6 manual swap
I have an 87 f150 that i want to manual swap. The truck only goes 60-65mph hoping i can get a little more top speed with manual swapping it.. what would be the best manual transmission that would fit flush onto the 300ci efi inline 6 thats relatively cheap.
and what all will i have to convert on the truck to do so..
and what all will i have to convert on the truck to do so..
Logistics Pro
Joined: Dec 2003
Posts: 3,777
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From: Foothills of NC
The easiest and cheapest thing would be to change axle ratio. What ratio do you have now, 4.11? The sticker on the drivers door jam will give an axle code. If you can't decode it, post a picture of the sticker and someone will tell you exactly what you have.
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4wd Low
Joined: Oct 2023
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i wanna say 3.08… it is 4x4
Hotshot
Joined: Jun 2015
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What auto transmission and differential gear ratio is in the truck? My ‘87 Bronco (302/ C6/ 3.55) would be able to keep up with 70mph traffic.
You could put an AOD in it to keep it an auto or would have to go with a 5speed. Either the Mazda M5OD or ZF5.
You could put an AOD in it to keep it an auto or would have to go with a 5speed. Either the Mazda M5OD or ZF5.
Logistics Pro
Joined: Dec 2003
Posts: 3,777
Likes: 863
From: Foothills of NC
My '87 has 3.08 with 30" tires (30x9.50x15), and can run 75 without too much of a strain on the rpms. 70 mph is still under 3000, around 2700 I think. I have a NP- 435, 4 speed direct transmission.
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