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This is out of the 51 F3 that I recently bought. The truck has 2 spun rod bearings so I haven't driven it yet. The trans appears to be a 4 speed and in very nice shape but what is it?
So I have a puzzle. Assuming that was the original trans why would the driveshaft be too long? When I removed the center carrier bolts the driveshaft sprung sideways because it is too long. I was thinking perhaps the trans was not the original and was longer. I bought someone's unfinished restoration project so the parts on the truck may not be original to the vehicle.
I don't know how they got the bolts in the carrier bearing if it actually sprung taking it out. Was the engine and trans still bolted in?
I just did a T98 and a Dana 60 swap and had my drive line shortened on both ends. The front section has to be right. No slip yoke. The rear section has the slip yoke at the diff. Is the carrier bearing pressed on correctly? I don't know if it can be put on backwards. I'd have to look at mine.
IF that is the stock trans, I don't know why the drive shaft is too long. I don't know what other transmissions were available in the F3. Maybe someone will chime in.
Looks generally dusty but not dirty. I am assuming this is not the way you pulled it out. If it is, my guess would be someone had it out and worked on it, at one time. The only place I see any grease caked is that small bit at the rear mounting pad. I just can't accept that thing stayed that clean for all those years.
Maybe a new clutch set was installed, something. The cotter pin, sticking out at the rear is not original. Someone has been into that tranny and there in, is the cause of your problem?
Looks generally dusty but not dirty. I am assuming this is not the way you pulled it out. If it is, my guess would be someone had it out and worked on it, at one time. The only place I see any grease caked is that small bit at the rear mounting pad. I just can't accept that thing stayed that clean for all those years.
Maybe a new clutch set was installed, something. The cotter pin, sticking out at the rear is not original. Someone has been into that tranny and there in, is the cause of your problem?
I bought a partially completed restoration and I agree that it looks like the trans has been apart. The work that has been done 'looks' really nice and obviously cost some $. The shifter is nice and tight, little to no slop, and it shifts nicely without the engine running. I have little to no Information on the truck so can't say how much is original to the truck.
The driveshaft is probably 1/8" preloaded, maybe less but has the rear slip yoke bottomed out. The center carrier bolts where not hard to remove so perhaps the problem is with the rear end or springs. Again these may not be original to the truck. The rear springs look symmetric, are they?
Her's my 52 F3 after having the drive shaft shortened. The slip joint was slid back 1" stock and I made sure it still had that when it was shortened.
Do you still have the original Timken diff? If not, that may be your problem. I had to take about 2" out for the Dana 60.
You could probably cheat and slot the carrier bearing holes a little for the front section. The rear has to have some room in the slip joint though. If it has none at all it may be pushing so much the carrier bearing can't line up with the mounting holes.
I still have the original Timken diff. Looks exactly likes yours. I might move the rear axle back by re-drilling the leaf spring pin holes. That will fix the current issue and shouldn't be difficult to do. The wheels look biased towards the front of the fenders. If the springs are not symmetric perhaps they are installed backwards?
I stuck a tape measure on my rear leafs. Measure the same either way.
I did notice that the axle tube is not centered over the rubber stop up on the frame. It is slightly forward. Probably centered as the springs compress and the shackles allow the axle to move back slightly.
Just telling you that in case you notice it forward of center.
I could take some measurements for you if it would help you. Maybe the only thing wrong is it is the wrong drive shaft.
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