I aquired a 1989 Ford f150 4.9L, 300 I6, 5 Speed Manuol OD Trans., After it runs a few minutes Oil Pressure goes to 0 (270,000 miles) so thinking of putting this Trans behind a 302 either for the Comet or the 50 Ford not sure which one yet. but anyway will it work, will it be a good option based on gearing? Not sure what gearing difference would be over a car 5 speed. Also know the Trans has 270,000 miles on it and will need rebuilt.
You could do this, but beware 1st gear is rather deep. These are good transmissions for what they are, but not really ideal for a Maverick. The transmission has an integral bellhousing and requires a hydraulic slave cylinder and throwout bearing, both of which will cost you $300+. You're going to run into clearance issues with the integral bellhousing, and the shift mechanism is all internal with only one location. All of this aside, strength wise you're probably somewhat ahead with a T-10 transmission. You should be able to pick one of those up for dirt, unless you need more strength and opt for a super T-10. They don't give those away, and in my opinion you'd be miles ahead with a toploader anyway.
Actually, the M5OD does not have a low 1st gear at all. I wish it did tho. I've got one in my 1990 F150 and it's alright, but for a Maverick there are much better choices. The M5OD is also pretty big and I think there would be some clearane isues in a Maverick.
That transmission has quite a low first gear at 3.75:1. Compare that to a close ratio toploader at 2.32:1 or a wide ratio toploader at 2:78:1. You don't want it for the above mentioned reasons on clearance, strength, and drive ratio.
Dang. I didn't realize 1st was that low. It's hard to get going in my truck but then again I have 33" tires and 3.08 gears. But yeah, I don't recommend using that in a Maverick. There are much better options out there
Does it have oil pressure when driving? I had a 300 6 that had no oil pressure at idle,but ran 25psi on the road. I drove it for a couple of years like that and never had a problem with it!
The M5OD is a MAZDA trans and I wouldn't want it in my car anyway. They had problems with wearing the nylon tips off of the shift forks. The 89-95 Thunderbird SC and the 89-93 Cougar XR7 used a M5R2 which is close to the M5OD but you cant get any parts for it and the shifter is back about 7 inches compared to a T5. This is also a MAZDA trans. The oil pressure gage in the pickup isn't a gage at all. It has a 150 Ohm resister and a oil pressure switch. if the pressure is above 7 Psi it will go to the middle. Thats why it drops to zero instead of gradually going down.
The M5OD is usually reffered to as the Mazdog among most truck guys. First gear is kinda low(but not enough for a truck) and reverse is ridiculously high(If I could steer it my '93 would probably do 40 mph in reverse) making it useless for truck type work. Great out on the highway though. As far as putting it in a car, wrong gear ratios, not real strong and with the 1 piece case/ bell, probably too big for an easy fit.
