Noise! Transmission?

[JMDancoe]

cereberusiam: How does $1,500. 00 delivered here for a "New". never installed 518 sound? 1993 vintage.

According to my parts manual, the 93 trans has the 5 spline helical planetary in it. 92 and earlier are a 4 spline straight cut gear.

 

[cerberusiam]

cereberusiam: How does $1,500. 00 delivered here for a "New". never installed 518 sound? 1993 vintage.

According to my parts manual, the 93 trans has the 5 spline helical planetary in it. 92 and earlier are a 4 spline straight cut gear.

Better buy that NOW. Thats cheap enough to be well worth it.



Thats a good question on the planetary. 93 was a "clean up and get rid of the old stuf cuz we are changing everything year" so it is entirely possible some got the 47RH OD planetary early. The only real difference between a 46RH and 47RH was the heavier lockup TC.



Only way to tell is take it apart to see what planetary is in it.

 

[cerberusiam]

Is Drews number the same , if he finds any of those pump heads were hes at let me know ill send him my pump

Yep, still the same number. We had to order heads to get some decent ones again. The couple he though were good weren't on close inspection.



You can get the aftermarket head for around $300, $400 for the 14mm. Obviously not the quality of a Bosch head but they work.

 

[cerberusiam]

Greig call me back and he seems to think it may be a roller bearing in the OD unit. He suggested putting it up on Jack stands and running it and trying to see just where the noise is. So I guess that is what is next.

Thats a possibility and one way to find it.

 

[DVolk]

I wonder if Type F fluid or some of those fancy race fluids would help until you changed the transmission ?

 

[JMDancoe]

Ok, this is where the senile old fart entires the room with egg on his face and an appoligy on his lips and realizes just how far his severe case of "terminal dumb butt" has gone.



Further testing has determined that it isn't the transmission after all, but the rear end. The sound was being "telegraphed" to the trans by the drive shaft. A stethascope located the problem. Ears are not good enough anymore. Probably a bearing but at this point, I am not sure. When I had the cover off, there was no metal in the fluid or case and I couldn't feel any slop in the pinion or gears. It may be just starting to go.



So, now I am on the hunt for a complete rear axle assembly, drum to drum. I will check the local bone yards first of course. Located one on the internet, down by the coast in the Pascagoula, Ms. area. $750. 00 plus, of course the congressional retirement fund (tax).



Cereberusiam, donovan and all the rest, I am sorry I screwed up and misled you. Senility races on. Thank you for all the help.



Jim

 

[cerberusiam]

Misled? Hardly. Anyone that hasn't been thru the exact same thing try to find the source of a noise or vibration these trucks just hasn't worked on enough of them.



A rear diff is a lot easier and less expensive than a auto trans. Glad it is osmething simpler to deal with. You probably have a rought bearing on the carrier, throw another set of bearings in it and drive.



Since you aren't showing any metal that might be a good project for the 1st gen wrench party.

 

[JMDancoe]

My brother is in for a small surgery in Phoenix this am, or I would just call him and ask this.

I have located a 12 bolt assembly about 20 miles away. Drum to drum. Mine is a 10 bolt. Will the whole assembly swap out? What are the benefits/detractions of the 12 bolt over the 10 bolt?

 

[JMDancoe]

By the way, mine is a 10 bolt "limited slip".

 

[cerberusiam]

If the 10 bolt is a Dana 60 the 12 bolt should be a Dana 70. With the diesel you want the heavier\bigger axle for both weight carrying and handling the TQ. You will also get the 3" wide drums for larger brakes.



If the backing plate to backing plate measurement and the spring perch width is the same it should fit fine.



IIRC, you will also need to source a conversion ujoint for the rear of the drive line as the 70 could have a larger joint.

 

[DVolk]

I was going to suggest a transmission i seen in Craigslist a trans out of a pete 330 of which is mechanicle , but since you have it narrowed down to the rear end . Id pull the hubs off and see if its the hub bearings or internal carrier bearings . Im fairly certain that the yokes will swap over if you dont want to do the conversion u joints . Heck they might have the matching drive shaft as well that will go right into your truck !! . I know were there is a 70 in 93 near me but then you have shipping involved . For a yoke id call Sixstates or Randys Ring and pinion . Also to make life easier if you dont have one go get a air cutter $20 at walmart and cut the shackel bolts and get new ones !!!

 

[dodgenstein]

I assume when you say 10 or 12 bolt you are talking about the ones that hold on the rear cover? If so both Dana 60 and 70 use the same 10 bolt rear cover. Not sure what a 12 bolt one is, as the newer AAM axles are 14 bolt?

 

[JMDancoe]

dodgenstein: Appreciate the come back and am posting this to show you where I came up with it. The axle was in a local yard and I went to look at it, and it was in a Dodge. Not much left of truck, so couldn't tell what year. I have since located a unit elsewhere. The chassis was in the line to be crushed. It wouldn't work anyway, as the width and spring mounts were radically different.



1992 Dodge Truck-250 Series (1981-1993)

Rear Axle Assy







4x2 (D models), (ABS), 10 bolt cover, Spicer 60, 5500 lb, 3. 55 ratio

4x2 (D models), (ABS), 10 bolt cover, Spicer 60, 5500 lb, 4. 10 ratio

4x2 (D models), (ABS), 10 bolt cover, Spicer 60, 5800 lb (4. 10 ratio)

4x2 (D models), (ABS), 10 bolt cover, Spicer 70 (diesel), 3. 07 ratio

4x2 (D models), (ABS), 10 bolt cover, Spicer 70 (diesel), 3. 55 ratio

4x2 (D models), (ABS), 10 bolt cover, Spicer 70 (diesel), 4. 10 ratio

4x2 (D models), (ABS), 12 bolt cover, 3. 55 ratio

4x2 (D models), (ABS), 12 bolt cover, 3. 90 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 60, 5500 lb, 3. 55 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 60, 5500 lb, 4. 10 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 60, 5800 lb (4. 10 ratio)

4x4 (W models), (ABS), 10 bolt cover, Spicer 70 (diesel), 3. 07 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 70 (diesel), 3. 55 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 70 (diesel), 4. 10 ratio

4x4 (W models), (ABS), 10 bolt cover, Spicer 70 (diesel), 4. 56 ratio

4x4 (W models), (ABS), 12 bolt cover, 3. 55 ratio

4x4 (W models), (ABS), 12 bolt cover, 3. 90 ratio



All I know is, these are the axle variations that are available to fit my truck. This list is from "Car Part".

 

[JMDancoe]

Donovan: Thanks! If I get the one I am trying to, (I won't know for sure until tomorrow) it will not be a problem to install. My truck is an Arizona unit with no rust and the U-bolts are fairly new, as we put this rear axle in about two years ago. Also, the people getting it for me are doing a vin number verification to see it is the same as what is coming out. The axle is coming from Yuma, AZ.

 

[JMDancoe]

By the way, if anyone out there is interested in a "new 518 transmission" for their trucks, give me a shout on here, and I will be glad to give the info to you. They run $1,250. 00 plus shipping and tax. He has several.

 

[dodgenstein]

The gas model D250's were made with the 9. 25 Chrysler built axles. They have 12 bolt covers, semi floating axles and were way lighter duty. These were originally built in the mid-70's to replace the 8 3/4 axles in 1/2 ton pickups (5 bolt hubs). As the trucks were changed to more emission/economy oriented in the 80's, they were available in 3/4 ton versions (8 bolt hubs).

 

[JMDancoe]

Dodgenstein: Thank you for the info. The one I went and looked at was a 12 bolt cover and had 8 lug "non full floating" hubs. As I said, however, the width was wider and the spring mounts were narrower than mine. Probably one of the older units. All that was left of the truck, was the rear axle, frame and one fender. The fender, though damaged, was definately a dodge of the 72 to 93 vintage. Thanks again.



Jim

 

[JMDancoe]

dodgeenstein: I did not notice your location before. Any chance you will make the 1st Gen meet in Lenox, Ia. ? I plan to be there, if I get rear end problem solved in time.

Even if not, it won't be out of the way to stop and say "hi" on my way up. Meet for coffee or whatever and talk trucks. What say you?

 

[MMiller]

Does your truck have a Dana 60 in it now? If you were to locate a 70, you could use the yoke off your 60, put it on the 70 and not need a conversion yoke. If you want to use the rear diff that is in it, a bearing and seal kit are relativly cheap. I however would not put any money in a Dana 60 rear diff behind a Cummins that did any long distance towing of much weight, IMHO.



If you are coming to Iowa before and stay a little after, we could do some rear diff repair. I've had many apart and together, and have the tooling to pull the bearings off the carrier.



Michael

 

[JMDancoe]

Hey Mike, Thanks! I don't want to run up there with a noisey rear axle, but will be bringing the whole unit with me, as my brother and I have talked about rebuilding it at his place. Might make for an interesting build during the "meet". May prove interesting to those who attend. I haven't found a "70" but have a "60" in the works. The one in the truck, is a "60". I believe. 10 bolt cover and tag says 3. 54 gear. All sources show it as a 3. 55. Not sure why the difference. It was out of my brother's 92 4X4. As he has owned the truck since new, it is definitly original.

Also, will be bringing one of the "new" 518 automatics with me, as I can't pass on the price.



jim