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I'm sure they didn't!How did they get oil in it with fill plug also welded in?
might be right on the welded cover, that would make sense if its not original to the truck. My first reaction was "well thats a better weld than they typically did on this truck", which made me scratch my head a bit and consider that it could have been original. But from the photos of other 25's I've seen nothing but bolted-on covers so this one's gotta go.Looks like you found your answer for the diff, I knew there were several kicking around. That welded cover is a mystery, my guess is it's actually a later housing, otherwise they did a nice job making the holes disappear. Below is a pic of a '59 differential, the adjuster nut and carrier bearing is the same as the 40, would most likely work on yours. Unfortunately the pinion is the only thing that would completely put you out of business, and that's toast.
View attachment 2344364
My May of 1959 book list part number as 41312 like yours. It also has optional part number as 41313might be right on the welded cover, that would make sense if its not original to the truck. My first reaction was "well thats a better weld than they typically did on this truck", which made me scratch my head a bit and consider that it could have been original. But from the photos of other 25's I've seen nothing but bolted-on covers so this one's gotta go.
Thanks for the picture, that adjuster nut is definitely a beefier version than what was on this truck and certainly a better design. I'm wondering if the south american trucks got a different part? 25 book says PN 41312, and the pieces that came off of Lara are 41315 which from what I've been able to find hasn't been a PN that existed on any other 25's and doesn't show up in any of the books. At any rate, hopefully the replacement front/rear ends prove to be clean inside, fingers crossed.
might be right on the welded cover, that would make sense if its not original to the truck. My first reaction was "well thats a better weld than they typically did on this truck", which made me scratch my head a bit and consider that it could have been original. But from the photos of other 25's I've seen nothing but bolted-on covers so this one's gotta go.
Thanks for taking a look! So it sounds like your fj28 4 door has a bolted on front diff cover too?We have a 1960 FJ28 soft top with a welded cover. It looks really old and matches the condition of the rest of the chassis. The other 2x variants we have, except for the plantation pickup (which is a restoration and may not have the original front axle) have inspection covers that are bolted on. This truck appears to still have the large 2x front brake drums so if the axle was swapped, they kept the old brakes. If it was replaced at some point it was a very, very long time ago. View attachment 2345049
That's VERY good to know as a backup plan, I was wondering this when I first got inside of it. It's obviously much easier to find a 40 series diff and I know where to get the driveshafts lengthened locally. Hopefully the other axles i've got coming will be in good shape and that won't be necessary, but helps me rest easier knowing that's a possibility if needed.The front diff covers were welded on from the factory. The same is true for all solid axle Landcruisers since there’s no need to ever remove it. Keep in mind that the diffs (and therefore pinion gears) are longer on the 20 series. A 40 series diff will likely bolt up to the housing, but it’ll require customized (lengthened) driveshafts to bolt up.
The strange thing is I seen a few FJ 25's and all had bolt on front differential covers. Including my 1960 FJ 25. Sounds like FJ 28's were a little different? JohnThe front diff covers were welded on from the factory. The same is true for all solid axle Landcruisers since there’s no need to ever remove it. Keep in mind that the diffs (and therefore pinion gears) are longer on the 20 series. A 40 series diff will likely bolt up to the housing, but it’ll require customized (lengthened) driveshafts to bolt up.
Some guy's around here, North California, Rubicon Trail, actually ground off the welds and put on bolt on covers on the front. Made it easier to see which axle broke without taking the wrong side apart.The strange thing is I seen a few FJ 25's and all had bolt on front differential covers. Including my 1960 FJ 25. Sounds like FJ 28's were a little different? John
The strange thing is I seen a few FJ 25's and all had bolt on front differential covers. Including my 1960 FJ 25. Sounds like FJ 28's were a little different? John