Operation NP435 & Over Drive

[FuzzFace2]

No, the second part should have read something like "Since both the T-18 and NP435 were used in 1981, as shown by the chart below, then for Ford to simply say 4/M/T must mean both transmissions take the same gear."

Now, all I know is what I read in the MPC, so that may be wrong. But that appears to be correct.

And I was wrong about when the T-18 was introduced.

As for the speedo jumping, it could be a bad drive gear. But if it didn't do it before I'd bet it is something else. I'd make sure the cable is long enough and well lubricated before I replaced the drive gear.

Looking at the chart I can see both trans were used in 81 but I am going to throw a wrench into the gears. I just remembered seeing a tag on the side of the NP435 with a year of "85".

I will go back over the charts to see if that changes anything, don't think it will.

The cable is on order should be here after 4pm tomorrow, 95" should be more than long enough.

The drive gear I can feel with a rubber glove on is low / worn in the middle so I don't trust it.

Between the drive gear & tight cable, the 2 things that has changed, that could be the bounce.

Thanks.

Dave ----

 

[1986F150Six]

I was hoping that was the case and I can actually help with that one :)

Yes, in 86 they changed the vss. I looked at a handful of 86 F250 4wd's and they all were like this but can't make the claim for applications outside of that. It is a single long cable that goes from the dash cluster to right at the tcase. Between the cable and the actual hole in the tcase is the vss. It can be removed with a clip although some jy ones were definitely easier than others.

Just did a quick look in the shop and am not finding the one I took apart as a test but I am pretty sure it's E9TZ-9E731-A

http://forum.garysgaragemahal.com/file/n64927/ACF-DY587_xl.jpg

Not a great photo but here it is on Camano. In this case it goes into an adapter for the gvod vs straight into the tcase.

http://forum.garysgaragemahal.com/file/n64927/IMG_20200618_091513.jpg

Boy, there are not cheap:

https://www.ebay.com/i/293492688928?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293492688928&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=6548d467ef511833f6a08a8c2cdb03ac

https://www.ebay.com/i/293079525218?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293079525218&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=289ffdf26ff010e48641a319ac7ab736

 

[kramttocs]

I was hoping that was the case and I can actually help with that one :)

Yes, in 86 they changed the vss. I looked at a handful of 86 F250 4wd's and they all were like this but can't make the claim for applications outside of that. It is a single long cable that goes from the dash cluster to right at the tcase. Between the cable and the actual hole in the tcase is the vss. It can be removed with a clip although some jy ones were definitely easier than others.

Just did a quick look in the shop and am not finding the one I took apart as a test but I am pretty sure it's E9TZ-9E731-A

http://forum.garysgaragemahal.com/file/n64927/ACF-DY587_xl.jpg

Not a great photo but here it is on Camano. In this case it goes into an adapter for the gvod vs straight into the tcase.

http://forum.garysgaragemahal.com/file/n64927/IMG_20200618_091513.jpg

Boy, there are not cheap:

https://www.ebay.com/i/293492688928?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293492688928&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=6548d467ef511833f6a08a8c2cdb03ac

https://www.ebay.com/i/293079525218?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293079525218&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=289ffdf26ff010e48641a319ac7ab736

No joke! There's a reason I was crawling under jy trucks looking for some spares and trying to learn how to take them off non-destructively

[FuzzFace2]

I was hoping that was the case and I can actually help with that one :)

Yes, in 86 they changed the vss. I looked at a handful of 86 F250 4wd's and they all were like this but can't make the claim for applications outside of that. It is a single long cable that goes from the dash cluster to right at the tcase. Between the cable and the actual hole in the tcase is the vss. It can be removed with a clip although some jy ones were definitely easier than others.

Just did a quick look in the shop and am not finding the one I took apart as a test but I am pretty sure it's E9TZ-9E731-A

http://forum.garysgaragemahal.com/file/n64927/ACF-DY587_xl.jpg

Not a great photo but here it is on Camano. In this case it goes into an adapter for the gvod vs straight into the tcase.

http://forum.garysgaragemahal.com/file/n64927/IMG_20200618_091513.jpg

Boy, there are not cheap:

https://www.ebay.com/i/293492688928?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293492688928&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=6548d467ef511833f6a08a8c2cdb03ac

https://www.ebay.com/i/293079525218?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293079525218&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=289ffdf26ff010e48641a319ac7ab736

So I drained the break in oil, I thing it should be called "flush oil". The drain plug has a magnet and it had metal chips on it. There was also a large chip in the ledge of the drain pan and when I looked at the oil it looked shinny like metal was floating in it.

I put in the 2 qt's of the Redline MT-90 gear oil that came with the OD unit.

The oil is pretty thin but it is what they sent so in it went.

I pulled the speedo driven gear so I would not hurt it, it is new, and I checked the drive gear and it is worn in the center and will be replaced. So far I think the T18 gear will fit the NP435 and with the driven gear that worked the speedo should be on the money like before.

I ordered a longer speedo cable 95" where mine from the parts truck was 70" so should be more then long enough.

I put as a guess 60 miles on it both local (50 MPH limit) to high way that could have been 70+ MPH.

Dave ----

[kramttocs]

So I drained the break in oil, I thing it should be called "flush oil". The drain plug has a magnet and it had metal chips on it. There was also a large chip in the ledge of the drain pan and when I looked at the oil it looked shinny like metal was floating in it.

I put in the 2 qt's of the Redline MT-90 gear oil that came with the OD unit.

The oil is pretty thin but it is what they sent so in it went.

I pulled the speedo driven gear so I would not hurt it, it is new, and I checked the drive gear and it is worn in the center and will be replaced. So far I think the T18 gear will fit the NP435 and with the driven gear that worked the speedo should be on the money like before.

I ordered a longer speedo cable 95" where mine from the parts truck was 70" so should be more then long enough.

I put as a guess 60 miles on it both local (50 MPH limit) to high way that could have been 70+ MPH.

Dave ----

Did they say there would be chips or are you contacting them?

[Gary Lewis]

I was hoping that was the case and I can actually help with that one :)

Yes, in 86 they changed the vss. I looked at a handful of 86 F250 4wd's and they all were like this but can't make the claim for applications outside of that. It is a single long cable that goes from the dash cluster to right at the tcase. Between the cable and the actual hole in the tcase is the vss. It can be removed with a clip although some jy ones were definitely easier than others.

Just did a quick look in the shop and am not finding the one I took apart as a test but I am pretty sure it's E9TZ-9E731-A

http://forum.garysgaragemahal.com/file/n64927/ACF-DY587_xl.jpg

Not a great photo but here it is on Camano. In this case it goes into an adapter for the gvod vs straight into the tcase.

http://forum.garysgaragemahal.com/file/n64927/IMG_20200618_091513.jpg

Boy, there are not cheap:

https://www.ebay.com/i/293492688928?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293492688928&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=6548d467ef511833f6a08a8c2cdb03ac

https://www.ebay.com/i/293079525218?chn=ps&norover=1&mkevt=1&mkrid=711-213727-13078-0&mkcid=2&itemid=293079525218&targetid=4581046486094194&device=c&mktype=&googleloc=&poi=&campaignid=395665087&mkgroupid=1239149814203389&rlsatarget=pla-4581046486094194&abcId=1129776&merchantid=51291&msclkid=289ffdf26ff010e48641a319ac7ab736

Yipes! I guess not!

I wonder how Ford handled the wiring length change. Did they add a jumper to go from the connector the 1980 - 85 trucks have under the hood down to the new location? Or is the harness itself different?

I ask because if they used a jumper you could get one of the early sensors and speedo cables and revert to the old way.

[grumpin]

Yipes! I guess not!

I wonder how Ford handled the wiring length change. Did they add a jumper to go from the connector the 1980 - 85 trucks have under the hood down to the new location? Or is the harness itself different?

I ask because if they used a jumper you could get one of the early sensors and speedo cables and revert to the old way.

I like that Redline MT90 oil. It was recommended to put in my 4Runner manual transmission.

An improvement in cold, hot and in between shifting!

[FuzzFace2]

Did they say there would be chips or are you contacting them?

Nope not a thing anywhere from them or others.

I guess I should talk to them to CMA should it crap out on me.

Gives me something to do today when they open

I like that Redline MT90 oil. It was recommended to put in my 4Runner manual transmission.

An improvement in cold, hot and in between shifting!

I don't think I would have issues when cold as it does not get that cold here.

What does worry me is the Lucas oil I put in the trans is rated GL-4 / GL-5 and they say the GL-5 is not good for yellow metal in trans.

Now someone said use Purple Max as it said will not hurt yellow metal but I looked at it yesterday and it is rated GL-4 / GL-5, the same as Lucas but has on the "bottle will not hurt" so what gives?

I did find on the shelf Penzoil rated for GL-3 could that be used?

Dave ----

[Gary Lewis]

Did they say there would be chips or are you contacting them?

Nope not a thing anywhere from them or others.

I guess I should talk to them to CMA should it crap out on me.

Gives me something to do today when they open

I like that Redline MT90 oil. It was recommended to put in my 4Runner manual transmission.

An improvement in cold, hot and in between shifting!

I don't think I would have issues when cold as it does not get that cold here.

What does worry me is the Lucas oil I put in the trans is rated GL-4 / GL-5 and they say the GL-5 is not good for yellow metal in trans.

Now someone said use Purple Max as it said will not hurt yellow metal but I looked at it yesterday and it is rated GL-4 / GL-5, the same as Lucas but has on the "bottle will not hurt" so what gives?

I did find on the shelf Penzoil rated for GL-3 could that be used?

Dave ----

I think there are several ways to meet various ratings such as GL-5. And some of those uses chemicals that hurt yellow metal and some don't.

[ArdWrknTrk]

I think there are several ways to meet various ratings such as GL-5. And some of those uses chemicals that hurt yellow metal and some don't.

The RP Synchromax is obviously formulated for yellow metal, and yet has that characteristic evil smell of chlorine and sulfur.