Well in the past week I have replaced the usual parts; starter, water pump, battery cables... The other night I was driving a 2 hour trip and my trans completely failed. I have a 1995 F150 with 6in of lift and 35" tires. It has low gears in the axles and a whole new drive train in receipts.

What is the next step? I have heard these transmissions will not handle the stress of oversize tires. Is this common? I need to keep this truck as a driver and I do mainly highway driving. What can I do to prevent this again and keep the truck highway worthy?

Thanks. I need to get this thing on the road again...

 

as with any brands' transmission keeping them cool is key. need a tranny cooler, and a damn good one at that for anything you mod with big tires etc. aside from that, transmissions are a wearable item, just like everything else, less you go through them like underwear. replace it and move on.

 

Yea keeping it cool is most important, tire size wouldn't have mattered. Definitely wouldn't help if the trans was not being adequately cooled no, but would have died of it anyway if not corrected.

When you say grenaded, what exactly happen to it and how many miles does it have on it?

You should have a trans temp gauge on it so you know what is going on with it at all times, something like playing in the mud with large tires tends to build heat among other various activities.

 

Well the trans has 130,000 and I'm just worried because I haven't been able to get to any mudding. I was just driving at night at 65mph. I pretty much lost all gears but that was only after getting it to my house and everything seemed normal again.

So you think it just overheated? If I get a trans cooler will I be able to run this truck in 5th gear without problems? Popular fix?

 

5th or od on a e4od? shouldnt be a 5th less its a manual, then it sounds like you just need a clutch. otherwise, pull that trans and rebuild it, you could try to run it as is with the addition of a cooler, but ill bet you wont make it too long before nothing happens anymore.

 

Its a m5od r2. Manual. It isn't a clutch that failed, thats for sure...

 

cooler wont help a manual trans, and the only thing that can slip is the clutch. 130,000 on it its probably the original clutch, and just like brake fade, when the friction material gets hot like that it slips, then cools down and grabs better. only other thing i can think of is that your slave cyl/throwout bearing (hydraulic) are toast, BUT your pedal would be mushy at best, most likely on the floor.

 

Yea when you said "Grenaded" I, as well as the others here, thought you where talking a "auto" trans, the E4OD.
Never heard anyone use the term Grenaded for a manual before, at least not without adding how gears, shafts and shifter forks hung out the side of it anyway!

What exactly do you mean "lost all gears"? You couldn't move the shifter, couldn't find a gear? Or as Gramps suggests the clutch just slipped to the point the truck didn't have any gears?

Clutch is really the only thing that makes any sense based on what you've updated with. A manual, it wouldn't loose all gears then get them back once cooled down if it was a trans problem. Manuals just don't get loose gears then get em back, the gear/s are there or they ain't. Not in the sense an automatic does.

If I get a trans cooler will I be able to run this truck in 5th gear without problems?

If I understand what you're asking here, and you didn't state what motor it has. Nothing will help it push itself along in 5th gear at highway speeds with tires that size "power wise", more then a gearing swap. (depending on motor)