Trans chart
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From: Casa Grande
Trans chart
Anyone know where I might be able to find a chart that list the trans Ford used? What I have is an 85 4/od behind a 300/I6 and would like to find a 5/od trans with a little lower 1st gear to replace it with. So would like to find a chart that list gears, overall lengths and applications so I could maybe find a junkyard trans.
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The Mazda 5 speed has a lower first than the 4 speed OD.
The ZF is a heavier duty trans with a much lower 1st than the 4 speed or the Mazda box.
Pics here:
Domestic Truck Tranny Guide
Ratios for the 4 speed OD here:
Toploader 4 Speed Transmissions
Probably a 3.25 first.
ZF ratios here, you will find the "wide" ratio behind 300s in F250s, and 351ws in F250s and up.
ZF Manual / Standard Transmission Identification Parts and Diagrams
Mazda info:
Mazda Ford M5R2 Standard ( Manual ) Transmission Parts and Diagram
Mazda ratios are:
3.91
2.24
1.49
1
.80
Look for "M5OD-R2":
Vibrate Software
(click on "1997-2011 help file", then "transmission ratios" under "Reference".)
Note the "--R1" model is for Rangers and won't bolt up to the 300, and "--HD" is the ZF.
The Mazda will be better for mostly street and road use, as the ratios are closer. A 3.7 to 4.10 axle with 32" tires, give or take, will work real well.
The ZF will work better for heavy loads due to the lower first gear and overall heavier construction.
Both are hydraulic clutch with internal slave cylinders. Your '85 (like mine) should have a hydraulic clutch already. You will need to adapt the master from the donor truck though, as I'm not sure "mix and match" works for this swap.
The ZF is a heavier duty trans with a much lower 1st than the 4 speed or the Mazda box.
Pics here:
Domestic Truck Tranny Guide
Ratios for the 4 speed OD here:
Toploader 4 Speed Transmissions
Probably a 3.25 first.
ZF ratios here, you will find the "wide" ratio behind 300s in F250s, and 351ws in F250s and up.
ZF Manual / Standard Transmission Identification Parts and Diagrams
Mazda info:
Mazda Ford M5R2 Standard ( Manual ) Transmission Parts and Diagram
Mazda ratios are:
3.91
2.24
1.49
1
.80
Look for "M5OD-R2":
Vibrate Software
(click on "1997-2011 help file", then "transmission ratios" under "Reference".)
Note the "--R1" model is for Rangers and won't bolt up to the 300, and "--HD" is the ZF.
The Mazda will be better for mostly street and road use, as the ratios are closer. A 3.7 to 4.10 axle with 32" tires, give or take, will work real well.
The ZF will work better for heavy loads due to the lower first gear and overall heavier construction.
Both are hydraulic clutch with internal slave cylinders. Your '85 (like mine) should have a hydraulic clutch already. You will need to adapt the master from the donor truck though, as I'm not sure "mix and match" works for this swap.
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Posting Guru
Joined: Jun 2004
Posts: 1,092
Likes: 2
From: Casa Grande
Thanks for the reply. What got me thinking was that I used to have a 96 F150 with the 4.2L with the 5sp trans and loved it. But really don't know what type trans it was or anything about it. Just thought it would be nice behind my 300.
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