F-150 gear ratios

Nemisis · 2006-10-23T13:05:17+00:00

I have an 89 F-150, 4.9L six, 5-sp manual and 3.05 diff gears. I havebeen contemplating changing to the factory 3.55 ratio. I know I'llhave to change some gearset in the tranny. Is this a worthwhile swap,or won't it make that much difference? How difficult is changing thespeedo gears?Mark

Oct 23, 2006 42 Replies

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lugnut 19 years ago

IIRC, the 87-91 had the speedo in the trans and the ABS in the diff. The 92 up sensed both speedo and ABS in the diff but still had a connection in the trans to sense excess trans converter slippage (at least in the E4OD's and AODE's)

Lugnut

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Matt Macchiarolo 19 years ago

Just something for the OP to consider. Stupid bandwidth wasting posting to prove you're a man doesn't really help anybody either.

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Matt Macchiarolo 19 years ago

A definite maybe.

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