12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

Gear ratios

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Old 09-20-2006, 03:32 PM
  #16  
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354??? I have an 01 with 355's??? Ive never heard of 345's???
Old 09-20-2006, 03:56 PM
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3.54/3.55 same thing. Just like some prefer saying 4.11 vs. 4.10.
Anyone know the ring/pinion teeth count is a D60/70/80?
Like on a GM a corp 14 bolt uses 10:41 for a 4.10 ratio and, IIRC, a corp 10 bolt front uses a different count to get a 4.11 ratio.
Old 09-20-2006, 09:15 PM
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My brother's truck has 3.54's. At least according to the sticker in the glove box. I think Ford calls them 3.55's though. Just like Chevy calls them 4.11's. My Scout II has Dana axles and 3.54's...or 3.55's? hmmmmm...
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