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1986 Ford F-150 4 SPD standard Transmission question

Tiny
JESSEJAMES89
  • MEMBER
  • 1986 FORD F-150
1986
Ford F-150 XLT Lariat Ext. Cab 4x4
167,000 miles
4.9L Straight 6, 300ci
4 Speed Manual Transmission w/ granny gear


I just have a question about the transmission. I've noticed that when I'm on the highway with this truck, just to keep up with traffic, the engine is screaming in 4th gear. I was wondering what I could do about this? Can I put a 5-speed in this truck, or would that involve changing alot of other parts?
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Wednesday, June 13th, 2007 AT 9:06 PM

1 Reply

Tiny
INDYUKE
  • MECHANIC
  • 416 POSTS
You could put a ford ZF or a mazda M5OD (both five speeds) into your truck with almost no modification. The driveline length might need to be changed, and if you don't have a hydraulic clutch, you would need to switch to that type of system. The ZF transmission is better. The synchros don't wear out as quickly.
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Thursday, June 14th, 2007 AT 8:13 PM

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