Tranny to Transfer case bypass hose

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roma042987 2 not paid
Freewheeling Frank 1 not paid
Pauly 1 paid
Vae Victus 1 paid
Shipmag 1 paid
Jetmutant 1 not paid
Antfj 1 paid
01tacotrd 1 paid
Pablo Cruise 2 not paid
jkl72-40 1 mailing payment not received
Copenhagen 1 paid
Numby 1 paid
85fjmule 1 paid

That make 8 payment received to date. Not enough for an order yet. Looks like we still need to work out the differing lengths and some others need to pay.
 
Looks like it needs to be 17.5" for split case

Roma can you post a picture of what you are working with? Maybe a pic that shows both fill plugs and some sort of measurement reference in the photo. Not sure why OP (bsevans) measurement was 15-15.5" for a split case and 4spd and you are coming up with 17.5"?

My truck has all its original components from 1977 so I am sure the measurement is the same as Shipmags 74 and 76.

Everybody who committed to purchase lets get Lou paid! He can't order the one I paid for till he gets your payments :).

Sent from my iPhone using IH8MUD
 
My original post list parts and measurements for a '78 fj40 which does not have a split case.

I was intrigued by the use of Banjo fittings. I did not know that they were available in 18mm x 1.5. I purchased two Banjo kits meant for a Garrett Turbo Charger on eBay and have a hose assemble being made using a straight fitting at the tranny fill port and a 90 degree fitting at the transfer case fill port. The hose is -6 Parker Tough Cover which has two internal wire braids. The Banjo kits have a male -6AN fitting. The length of the hose used is much shorter than was used in my original solution due to the 90 degree crimp fitting. When I have the set-up installed I will post pictures, part numbers, hose length and what it cost to put this setup together.
 
I dont understand why people install these hoses. ALL they do is allow the trans to be WAY under-filled and the T-Case to be WAY over-filled. They are in no way a repair and not at all needed if the trans and t-case seals are in good condition. If they are in bad shape they need to be replaced.

This is a band-aid at best and a bad band-aid at that.
 
I sent the manufacture an email asking for the cost of the 17.5 and verifying no additional cost for the 15.5. It probably will be monday before we hear. We still need to have a minimum of ten paid to place the order. So if you havent paid please do so. I would like to bring this to closure first of the week.
 
can you explain this? how can it suck oil out of the trans lower than the actual fill hole itself?

also not all of us are co-owner's of a LC shop with a lift.. and tools to replace a t-case seal :/

I dont understand why people install these hoses. ALL they do is allow the trans to be WAY under-filled and the T-Case to be WAY over-filled. They are in no way a repair and not at all needed if the trans and t-case seals are in good condition. If they are in bad shape they need to be replaced.

This is a band-aid at best and a bad band-aid at that.
 
I just did this yesterday using all Parker fittings and hose. I understand this to be a bandaid but who cares? If it gets me on the road for now and stop my transmission from leaking due to excessive oil being pumped into it, then I'm fine with that. I will replace the seal when im good and ready.

image-3597404381.jpg
image-3597404381.jpg
 
can you explain this? how can it suck oil out of the trans lower than the actual fill hole itself?

also not all of us are co-owner's of a LC shop with a lift.. and tools to replace a t-case seal :/

The assumption when installing this hose is that the seal between the trans and t-case has failed. Thus allowing the gear oil from the trans into the tcase..
I think the idea is that if your seal has failed, the hose will allow the fluid from the overfilled t-case a route back to the trans. However the fill plug for the trans is 3-5 inches above the t-case fill plug so nothing happens.
I have also heard people talk about pressure forcing fluid one way or another. However, again they should both have clear vents to prevent any pressure buildup.
If the fluid levels in your trans and t-case stay steady than you are good and the hose just provides a path for the gear oil to overfill the t-case.

BTW I did my first t-case rebuild in high school with hand tools.
 
Here is the status of the buy all the 12.75 hoses are paid for. We are waiting for an email from the manufacture to see what he is going to charge for the 17.5 as that is an inch longer than he allowed. As soon as I hear from them I will pass that cost on to the ones who want the 17.5 hose. Please note the 12.75 is for a stock 4 speed and a one piece transfer case. If you have some thing different it is your responsibility to get me the correct measurement. There are no refunds or redo's if it doesn't fit you will have to pay the manufacture to resize it. I am going with the 12.75 as that is what I installed on the 74 FJ40 and it fit. I would rather 12.5 but I am not going to risk the chance it may not work. I plan on placing the order as soon as the 17.5 pay for their hoses. Hopefully Tuesday we can palce the order.

6/21 roma042987 1 12.75 paid
6/22 Freewheeling Frank 1 12.75 paid
6/23 Pauly 1 12.75 paid
6/23 Vae Victus 1 12.75 paid
6/23 Shipmag 1 12.75 paid
6/28 Jetmutant 1 12.75 paid
6/28 Antfj 1 12.75 paid
6/28 01tacotrd 1 12.75 paid
6/29 Pablo Cruise 2 12.75 paid
6/29 jkl72-40 1 12.75 payment mailed not received
7/1 Copenhagen1 1 12.75 paid
7/2 Numby 1 12.75 paid
6/28 85fjmule 1 17.5 paid $45 need cost
7/4 roma042987 2 17.5 not paid need cost
16 total
 
The assumption when installing this hose is that the seal between the trans and t-case has failed. Thus allowing the gear oil from the trans into the tcase..
I think the idea is that if your seal has failed, the hose will allow the fluid from the overfilled t-case a route back to the trans. However the fill plug for the trans is 3-5 inches above the t-case fill plug so nothing happens.
I have also heard people talk about pressure forcing fluid one way or another. However, again they should both have clear vents to prevent any pressure buildup.
If the fluid levels in your trans and t-case stay steady than you are good and the hose just provides a path for the gear oil to overfill the t-case.

BTW I did my first t-case rebuild in high school with hand tools.

In my experience when the seal fails the fluid migrates from the t-case to tranny...
 
Wasn't sure if 60 owners were in on this as well as the 40 guys, as I know they have the extension housing after 84 that adds the extra length.

Jason I haven't ever owned a 60 series, so I am just thinking out loud here, but is the extension you are talking about between the transmission and the transfer case? If so, is it effectively the same length as a 5spd with split case? Would that same length of hose work for a 4spd plus extension and split case as well as 5spd and split case?

Last I remember, you probably have a small geography issue and can't measure your rig. Maybe someone with the extension can step up and measure. Thank you for your service to our country. :cheers:
 

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