Transfer case lowering

[BajaEdition]

Hi Baja;
Sometime ago I swapped a T-98 to my 1962 CJ5 with DANA 18 transfer.( I keep the stock T-90 with the stock DANA 18 though) and as shown in "figure 2" I adjusted "0" degree.But while driving on highway every time the vehicle sprang downward a disturbing sound occured.It was something like when the fan touches the radiator shroud.( It wasn't the case though)Then I put degree vedges to achieve some degrees more than "0"
That sound was to some extend reduced ,but when the vehicle is loaded and while crusing on highway it occurs (slighter now) when the weight presses the springs downward.
I want to increase the degree of the vedges a bit more.If it still keeps I want to shift back to T-90
Any suggestion here will be greatly appreciated.

the T-98 is almost 3 inches longer than the T-90 , if you did not get new driveshafts, I imagine you are having trouble.
I really need more info on the swap and pictures. If you are serious about finding the problem I will tell you what to take pics of

 

[73CJ]

my valve covers are close with no drop.

My valve cover was hitting the firewall when the old steel body's front mounts fell apart. The tub was also sitting on the bell housing. Some thing to look at.

When I rotated the rear axle for the DC drive shaft, the pinion was about 20 degrees from horizontal. Not sure if shims would be a good idea there.

 

[seyit]

the T-98 is almost 3 inches longer than the T-90 , if you did not get new driveshafts, I imagine you are having trouble.
I really need more info on the swap and pictures. If you are serious about finding the problem I will tell you what to take pics of

Thanks for the reply,Baja.
I got the front and rear propellar shafts refabricated at a lathe shop.The front one was lenghtened while the rear was shortened.
I grinded and cut off the beds which rest on the rear springs and rewelded them(I'm afraid at an exessive angle)Noticing this after experiencing the disturbing sound mentioned above) I got two degree vedges made at a mill shop( Can't remember the exact degrre now)and pushed them in between from the rear to decrease the angle of the pumkin.This helped to reduce that annoying sound to some degree but I think it is not sufficient.
I will take some pictures soon as possible,but at the moment I am pinned at home with some flu and very stiff back for carelesly lifting my tablesaw.
If you have a close look at the attached picture you can notice the rear face of the degree vedge.(A previously taken picture)
I am afraid with these vedges ,the propellar shaft is only at "0" degree,or so.
Towards Spring I want to take the body off for sanding,welding,patching and repainting.Then I want to remove the vedges and regrind the beds to reweld to a better degree( Now I understand at 3 degrees or so)
The sound increases when the weight(load) increases and reduces when the weight reduces.

 

[rbagley]

Typically the case is lowered by adding a spacer between the bottom of the frame and the top of the cross member/skid plate that the Transmission mount is bolted to. Spacers are usually about an inch or so in thickness with a hole in the middle for the bolts and of course the bolts are longer to make up for the extra length. When the Transmission is lowered it reduces the angle of the drive lines from the Transfer Case to the pinion yoke reducing vibration an u-joint wear.

I came across this online at 4x4xplor.com. Does anyone know whether these are a good option or not? M.O.R.E. bombproof Jeep Motor Mounts.
Maybe there is another thread on them? I have a 4" suspension lift going on and a 1" body lift so I was considering them rather than dropping the Transfer Case with the spacers that came with the lift.
Here is the write-up->

[FONT=Verdana, Arial, Helvetica, sans-serif]M.O.R.E. 1" Bombproof Jeep Motor Mount Lift[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]If you've just lifted your Jeep 3" or more, you will most likely experience vibrations coming from your driveline. The cheap way to fix this is problem is to add a Transfer Case drop and the best way to fix it is to install a Slip Yoke Eliminator & CV driveshaft. However, there is a solution somewhere in between the two and that is to install a 1" motor mount lift.

A motor mount lift (also know as an MML) will help to straighten out your driveline the way a transfer case drop would except you don't have to sacrifice any clearance under your Jeep.... you know, the same clearance you just paid a bundle lift higher. Anyway, a high quality MML like M.O.R.E. (Mountain Off Road Enterprises) makes will set you back about $120 and you will need to install a 1" body lift if you don't already have one (approx. $70), but it's still cheaper than an SYE/CV. I decided to get M.O.R.E.'s Bombproof motor mounts because they are made torsion rubber bushings. Unlike polyurethane bushings (like most other manufacturers use), torsion rubber is very durable but still behaves like traditional rubber (i.e. no engine vibes).

For those out there who think installing an MML is a good idea when doing a body lift, all I can say is this. If you don't have any vibes, you don't need an MML and it certainly isn't a better solution then relocating your fan shroud. Trust me, I have done both. Relocate fan shroud = 10 minutes and it's a piece of cake install. MML install = 2 hours of moderate to hard work. You do the math.[/FONT][FONT=Verdana, Arial, Helvetica, sans-serif]
[/FONT][FONT=Verdana, Arial, Helvetica, sans-serif]
[/FONT]

 

[Sasquach]

I came across this online at 4x4xplor.com. Does anyone know whether these are a good option or not? M.O.R.E. bombproof Jeep Motor Mounts.
Maybe there is another thread on them? I have a 4" suspension lift going on and a 1" body lift so I was considering them rather than dropping the Transfer Case with the spacers that came with the lift.
Here is the write-up->

[FONT=Verdana, Arial, Helvetica, sans-serif]M.O.R.E. 1" Bombproof Jeep Motor Mount Lift[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]If you've just lifted your Jeep 3" or more, you will most likely experience vibrations coming from your driveline. The cheap way to fix this is problem is to add a Transfer Case drop and the best way to fix it is to install a Slip Yoke Eliminator & CV driveshaft. However, there is a solution somewhere in between the two and that is to install a 1" motor mount lift.[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]A motor mount lift (also know as an MML) will help to straighten out your driveline the way a Transfer Case drop would except you don't have to sacrifice any clearance under your Jeep.... you know, the same clearance you just paid a bundle lift higher. Anyway, a high quality MML like M.O.R.E. (Mountain Off Road Enterprises) makes will set you back about $120 and you will need to install a 1" body lift if you don't already have one (approx. $70), but it's still cheaper than an SYE/CV. I decided to get M.O.R.E.'s Bombproof motor mounts because they are made torsion rubber bushings. Unlike polyurethane bushings (like most other manufacturers use), torsion rubber is very durable but still behaves like traditional rubber (i.e. no engine vibes).[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]For those out there who think installing an MML is a good idea when doing a body lift, all I can say is this. If you don't have any vibes, you don't need an MML and it certainly isn't a better solution then relocating your fan shroud. Trust me, I have done both. Relocate fan shroud = 10 minutes and it's a piece of cake install. MML install = 2 hours of moderate to hard work. You do the math.[/FONT]

No slip yoke on any CJ transfer cases, stoped reading the info after that.

 

[BajaEdition]

rbagley
that article is writen about Jeeps since 86, wranglers, noCJ ever had a slip yoke.
Nice find but info about a entire different drivetrain than we have.

apples to oranges stuff.

 

[rbagley]

rbagley
that article is writen about Jeeps since 86, wranglers, noCJ ever had a slip yoke.
Nice find but info about a entire different drivetrain than we have.

apples to oranges stuff.

Well that is good to know for sure. I appreciate that.

 

[BajaEdition]

Well that is good to know for sure. I appreciate that.

the problem is that most tech articles written today ignore CJs

and that makes it confusing

here we are dealing with antiques, it is a very nice thing owning an antique, your buds who also will help you to the end of the earth because the antique becomes a hobby just to keep going. That is why our friendships here are so solid, we are all working to the same end.
Information though can be tough to come by as you are dealing with Jeeps not made in the last25 years, now take the average 18 year old and add 25 years to him, now he is 43, that is about the age that someone whould have to have been, or older to have bought a new CJ.
As any guy can discuss Tj and Jk tech all day long, we here choose to keep CJ tech alive, we are avid about it. But you have to dig deep to find it.
Especially the stuff I like, what is called early Cjs, 1945 to 1971.

thanks for the answer, and it helps for YJs on up.

 

[seyit]

the problem is that most tech articles written today ignore CJs

and that makes it confusing

here we are dealing with antiques, it is a very nice thing owning an antique, your buds who also will help you to the end of the earth because the antique becomes a hobby just to keep going. That is why our friendships here are so solid, we are all working to the same end.
Information though can be tough to come by as you are dealing with Jeeps not made in the last25 years, now take the average 18 year old and add 25 years to him, now he is 43, that is about the age that someone whould have to have been, or older to have bought a new CJ.
As any guy can discuss Tj and Jk tech all day long, we here choose to keep CJ tech alive, we are avid about it. But you have to dig deep to find it.
Especially the stuff I like, what is called early Cjs, 1945 to 1971.

thanks for the answer, and it helps for YJs on up.

Thanks.Baja;
Of course we can't expect the younger generations to pay some more attention to the vehicles that some of us are in love with.I was in elementary school and the whole school was taken to a movie( I don't know why we were taken though) It was the first time that I met the"JEEP." There were three low bonnet flat fenders in the movie with tops moved and the windshields folded down on the hood.It triggered what I had/have in me and I'm still in love now being someone over 60 years of age.By chance ; goverment sold a 1954 3B as a surplus a couple of years later than that movie and with my excessive request my father bid and purchased her.I was the happiest being in the world and learned how to drive in that jeep.Years later I was able to buy my 1962 again as goverment surplus(37 years ago).I still have her.Then AMC CJs showed up.My jeep was TL 500.000 and an AMC CJ5 (new) was TL 75,000,000 .This was enough to put them in " Unreachable" class,but I should confess I was very charmed by them.Years passed by with dreams of owning an AMC CJ5 and oneday dreams came true.Now I have an AMC 1980 CJ5 ,too.But hold there;My 1962 is warmer and sweeter than the second,and I can't give her up.1980 is mostly in the garage while the '62 is almost always around me.
Please for give me for taking your time.I just wanted to share this.

 

[Niedhogg]

That's a great story, Seyit.. It's great to see people from all over the world who enjoy and treasure these vehicles like yourself. I, for one, am glad you shared that with us. Thanks!

On a side note.. I have no idea what TL 75,000,000 converts to in dollars, but it seems unreachable for even anyone here in the U.S.! LOL

 

[Niedhogg]

I took a couple pics of my valve cover clearance, for the nay-sayers , and then one of the rear drive shaft angle that I hope you guys can see. It may not be the best solution, but for a guy trying to save a buck and make his CJ a little safer to drive, this home made drop kit cost me all of about 5 bucks to make, and that includes paying the hardware store like .12 cents per cut x 10...
View attachment 7305

View attachment 7306

View attachment 7307

View attachment 7308

I'll install the fan later this week to see if there's an issue with that, but I think it'll work for now.

 

[seyit]

That's a great story, Seyit.. It's great to see people from all over the world who enjoy and treasure these vehicles like yourself. I, for one, am glad you shared that with us. Thanks!

On a side note.. I have no idea what TL 75,000,000 converts to in dollars, but it seems unreachable for even anyone here in the U.S.! LOL

In the past we had serious inflation problems resulting lots of zeros with our money.Than we had to upgrade our electronic calculators from 6 to 8 digits.Seeing that we still needed more digits then upgraded to 12 digits,and that also did not help much.In the end the goverment dropped 6 zeros from the money.Today the calculators can handle things.( we can't though, lol! )
Currently 1USD= TL1.85
New generation of jeeps are around TL AMC 150 .000 here in Turkey I think.That is ;around USD 75,000 and it is the sum that I can earn in AMC 150 months without spending a Dime.