1981 straight six manual 4x4 project

[Steve83]

...if the steel anchor arm can wear through the magnesium case I don’t see a thin layer of plastic being able to stop it.

The interaction between the steel & plastic is different from that between the steel & Magnesium. If the wiper arm is allowed to rub on the windshield, it will cut a groove into the glass; but a thin strip of soft rubber between them prevents that. A dentist's drill doesn't do much when touched lightly to skin, but using the same force, it can bore through the hardest substance in the body.

And how would it stay in place?

By being trapped there. How would it come out?

Is there any thing wrong per se with welding on a rod to distribute the force?

No. But it only slows the process by increasing the contact area - it doesn't stop it. And it requires welding, and not everyone can do that. Anyone who can split a transfer case can cut a piece of plastic.

[kramttocs]

I know this is for a 1356, but does it also apply to a 1345?

Yes it does. I don’t know if there are others, but the 1345 and 1356 both have this Achilles heel 😔

Looks like the 1345 may have went all into the River Styx :) Split mine today and it doesn't look at all like those photos at least in regards to the triangular piece. Unless I am completely missing something the case doesn't have the notch at all. I also can't see into the pump like it appears one can with the 1356. I know its case is aluminum vs the magnesium mix so maybe this is another difference. I was looking at a video online after I didn't see the notch and noticed that guy with the 1356 had to remove a clip before the back half came off. Mine just slipped right off. Will try to add some photos if I can get my phone to work.

[Gary Lewis]

Looks like the 1345 may have went all into the River Styx :) Split mine today and it doesn't look at all like those photos at least in regards to the triangular piece. Unless I am completely missing something the case doesn't have the notch at all. I also can't see into the pump like it appears one can with the 1356. I know its case is aluminum vs the magnesium mix so maybe this is another difference. I was looking at a video online after I didn't see the notch and noticed that guy with the 1356 had to remove a clip before the back half came off. Mine just slipped right off. Will try to add some photos if I can get my phone to work.

Interesting! When you say "pictures" that it doesn't look like, are you including those from the factory or BW manual? Driveline/Transfer Cases and the BW1345 tab.

[kramttocs]

Interesting! When you say "pictures" that it doesn't look like, are you including those from the factory or BW manual? Driveline/Transfer Cases and the BW1345 tab.

Wasn't very clear, was I? :) I was meaning the ones showing the case mod. I didn't think to look at your diagram but just did and I didn't see the triangular piece there either so further confirmation the 1345 doesn't have to worry about that. Splitting the one with the gvod back half as we speak. While welding that piece on isn't a huge deal, it is nice knowing it isn't needed.

[Gary Lewis]

Wasn't very clear, was I? :) I was meaning the ones showing the case mod. I didn't think to look at your diagram but just did and I didn't see the triangular piece there either so further confirmation the 1345 doesn't have to worry about that. Splitting the one with the gvod back half as we speak. While welding that piece on isn't a huge deal, it is nice knowing it isn't needed.

Interesting. Let us know what all you find.

[Ford F834]

Wasn't very clear, was I? :) I was meaning the ones showing the case mod. I didn't think to look at your diagram but just did and I didn't see the triangular piece there either so further confirmation the 1345 doesn't have to worry about that. Splitting the one with the gvod back half as we speak. While welding that piece on isn't a huge deal, it is nice knowing it isn't needed.

Hmmm... it seems like not all online information is in agreement here... and I am starting to wonder if this wasn’t a change made during the run of the 1345?

Here is an online picture I saved some time back. I’m not sure where it came from, but they were selling the pump kit shown in the upper left:

Now here is the exploded diagram from the Borg Warner service manual. I see no such part. The pump is #33 on the diagram:

Now here is the exploded diagram from the Ford MPC. It shows a part with the generic designation of 7E215... oil pump retainer. Looks like about the right thing, but not exactly a triangle anchor:

When you go to look up the part, the applications tab shows that 6A, 6B, 6C, 6E, 6F, and 6Q are all BW1345. The parts list only covers 6A through 6M, but all the BW1345’s use the same 7E215 oil pump retainer:

So, what does a E6TZ-7E215-A look like? ...Not a big triangle:

Based on this and what kramttocs is seeing, it sounds like it does not have the triangle anchor, unless it was added in 1989 and is “6Q” not covered in the parts list? I’m still puzzled as to why the retainer above has a 6E (1986) part number when it started production in 1980, but the fact that the part number covers all applications back to 1980 means it can’t be all that different.

Kramttocs, I am sorry I led you down a wrong rabbit hole of splitting a case that didn’t need to be opened. I meant well...

[kramttocs]

Hmmm... it seems like not all online information is in agreement here... and I am starting to wonder if this wasn’t a change made during the run of the 1345?

Here is an online picture I saved some time back. I’m not sure where it came from, but they were selling the pump kit shown in the upper left:

Now here is the exploded diagram from the Borg Warner service manual. I see no such part. The pump is #33 on the diagram:

Now here is the exploded diagram from the Ford MPC. It shows a part with the generic designation of 7E215... oil pump retainer. Looks like about the right thing, but not exactly a triangle anchor:

When you go to look up the part, the applications tab shows that 6A, 6B, 6C, 6E, 6F, and 6Q are all BW1345. The parts list only covers 6A through 6M, but all the BW1345’s use the same 7E215 oil pump retainer:

So, what does a E6TZ-7E215-A look like? ...Not a big triangle:

Based on this and what kramttocs is seeing, it sounds like it does not have the triangle anchor, unless it was added in 1989 and is “6Q” not covered in the parts list? I’m still puzzled as to why the retainer above has a 6E (1986) part number when it started production in 1980, but the fact that the part number covers all applications back to 1980 means it can’t be all that different.

Kramttocs, I am sorry I led you down a wrong rabbit hole of splitting a case that didn’t need to be opened. I meant well...

Hey, no apologies needed whatsoever! I didn't know the history of the gvod tcase so it needed to be opened anyways and never having personally seen inside one before, it was a good learning experience. Truck is completely (and I mean completely) dismantled right now anyways so not like this caused any inconvenience at all.

Appreciate all the diagrams and research you've done.

[Steve83]

I’m still puzzled as to why the retainer above has a 6E (1986) part number when it started production in 1980, but the fact that the part number covers all applications back to 1980 means it can’t be all that different.

These are just guesses & speculation, but it might be that a different retainer (plastic, Aluminum, different shape) was used in the early cases, and was revised to the one you found, which might be recommended to replace the older ones. It's also conceivable that the early cases didn't have a pump retainer (stay arm) at all; they might have relied on the pickup tube between the pump & filter to keep it from spinning. 7E215 is a base PN for all t-case pump retainers of that type. There could be 100 variations with different prefixes & suffixes. For example: both of these diagrams indicate 3E715 & 3E723 for the ignition actuators, but they ARE "all that different":

https://supermotors.net/getfile/72346/thumbnail/columntilt-exploded.jpg

https://supermotors.net/getfile/894814/thumbnail/column9296tiltex.jpg

The early ones are pot-metal; the later ones are plastic; entirely different shapes; and not even close to being interchangeable with the older ones.

[Ford F834]

Interesting. Let us know what all you find.

Thanks Steve. I was thinking it must be something like that re the ‘86 part number.

For Gary or anyone else following the 1356 I did read that spun retainers seem to go hand in hand with a seized pump. It’s open to speculation whether the seized pumps cause the spin out or the other way around, but if the case is opened to modify the arm it might be worth doing the pump too... if it is old or unknown condition. The other note of caution is to take it easy on the RTV used to seal the case halves. Excess can clog the pick up filter for the pump.

[kramttocs]

Thanks Steve. I was thinking it must be something like that re the ‘86 part number.

For Gary or anyone else following the 1356 I did read that spun retainers seem to go hand in hand with a seized pump. It’s open to speculation whether the seized pumps cause the spin out or the other way around, but if the case is opened to modify the arm it might be worth doing the pump too... if it is old or unknown condition. The other note of caution is to take it easy on the RTV used to seal the case halves. Excess can clog the pick up filter for the pump.

I must have read that same thread a few times this weekend

"The other note of caution is to take it easy on the RTV used to seal the case halves. Excess can clog the pick up filter for the pump. "

Funny - my wife was standing there as I was rtv'ing the case and I was explaining to her how much I drive myself crazy over stuff like that. Too much, too little, clog the pump, have a leak. Been second guessing myself since - even debated getting the wall camera out to look inside at the seams :D