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Question about speedo and FMX tranny
#1
Two questions actually
question 1
Can bands be adjusted on an FMX. I think mine is slipping during hard acceleration and I want to know I rebuild or adjustment is likely solution.


question 2
PO put in 350 gears in back instead of 275 original gears but did not calibrate speedo. Do I need a new gear to recalibrate. If so, which one? Where is it?

Bright lime 72 Mach 1 with 351C 4V, with summit 600 carb(have a Holley too), Edelbrock dual-plane manifold, Hooker headers, 3 inch exhaust with flowmasters, 17 inch Eleanor wheels, FMX tranny, A/C, P/S, front disks and 350 rear gear. Drive it to work every day.
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#2
On question 2, one would think a 21 tooth gear would get you pretty close. The speedo gear is located in the tailshaft housing on the drivers side. Look where the speedo cable goes in, remove the 2 bolts and pull the cable out of the tailshaft housing, the speedo gear will come out with the cable.

351w - Ford racing GT40X 178 cc aluminum heads - Ford racing(crane) 1.7 roller rockers - Comp Cams 280H magnum cam .544" / .544" lift - ARP fasteners - hedman longtubes - magnaflow exhaust with X pipe -  MSD digital 6al box - MSD coil - optima red top battery - tuff stuff 140 amp alternator - ported weiand stealth intake  - edelbrock 1406 600 carb  - march pullies and brackets - Be cool fan controller - derale electric fan - FMX trans - motive 4.11 gears - traction lok - competition engineering subframe connectors - lakewood traction bars.                                            










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#3
FMX bands are adjustable:
   

You can calculate the speedometer gears you need here:
http://www.7173mustangs.com/thread-speedometer-gears



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#4
I was able to open the spreadsheet. Just need to know what 6,7, or 8T drive gear. I have with an FMX. Any idea what the number goes with the T. I know I have 350 gears. That was confirmed when I had my rear seals removed.

Bright lime 72 Mach 1 with 351C 4V, with summit 600 carb(have a Holley too), Edelbrock dual-plane manifold, Hooker headers, 3 inch exhaust with flowmasters, 17 inch Eleanor wheels, FMX tranny, A/C, P/S, front disks and 350 rear gear. Drive it to work every day.
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#5
You probably have a 7-tooth drive gear, which was the most common.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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