best upgrade

[20Rick06]

i have a 06 with the H. O. CR G56 and 3. 73, i was wondering what the best programmer and clutch was for towing my fifth wheel and my flatbed gooseneck? any input would be apprieciated(i think thats how u spell it).

 

[Shadrach]

Although my engine is slightly different my trans and rear axle ratio are the same. I used a South Bend Con OFE clutch and flywheel kit with their hyd cyl as well. I went with the middle version, even though I don't have that much HP, because I tow. I like it. Read this first: http://southbendclutch.com/rightclutch.html then see here: http://southbendclutch.com/2005-2013.html Shad

 

[20Rick06]

thanks, will do

 

[jgillott]

Take a look at the Smarty Jr. if you want to go with a programmer.

BTW..... Welcome to TDR

 

[RVTRKN]

Rick, I am going to change out my DMF & clutch in the near future, (May) and had a long talk with Richard from Standard Transmission, who is now running the new shop in Tucson AZ. I'm going to have him tear down the G56 and inspect it, then have it filled with Pennzoil Synchromesh. Even though I don't expect to haul over 23K GCVW, I'm going to have a girdle installed on the G56 to keep the gears in alignment all the time. It only has 43K on it, but for just a couple of hundred dollars more, he will inspect it. The girdle is to prevent the case from twisting under heavy torque, it is a problem that has been known to destroy the G56, and according to Richard the parts are very expensive due to Chrysler's monopoly on them. So it makes since to me to buy insurance (girdle) and have a long lasting trany. If your going to tune your truck, you will need to do this, the HP/TQ rating on the G56 is at the limit in our stock CTD's.

 

[20Rick06]

thanks, the smarty jr is what ive been hearing the most of

 

[20Rick06]

thanks for the info rv. i just traded a 2000 f350 with the 6spd in on this truck and i didnt have any luck with that transmission at all.

 

[RVTRKN]

Was your experience with the 6spd a chronic problem for Ford, or just your 350? Even though I would never own a Ford, the 7. 3 PS is a reliable engine in perspective of the 6. 0 disaster. The 7. 3 is a dog, but pulls like a freight train, but how was your power with the manual trans, when it performed as designed? The G56 is not as heavy duty as the NV5600, but is reliable if you stay within the ratings of it. Has the DMF been replaced already with a solid flywheel? The DMF in the Dodge can fail, but there has been some high miles on them in the stock form. My issue with my clutch may be related to the DMF, but it will be replaced regardless of the condition when the clutch is replaced.

 

[Bob4x4]

Rick, I am going to change out my DMF & clutch in the near future, (May) and had a long talk with Richard from Standard Transmission, who is now running the new shop in Tucson AZ. I'm going to have him tear down the G56 and inspect it, then have it filled with Pennzoil Synchromesh. Even though I don't expect to haul over 23K GCVW, I'm going to have a girdle installed on the G56 to keep the gears in alignment all the time. It only has 43K on it, but for just a couple of hundred dollars more, he will inspect it. The girdle is to prevent the case from twisting under heavy torque, it is a problem that has been known to destroy the G56, and according to Richard the parts are very expensive due to Chrysler's monopoly on them. So it makes since to me to buy insurance (girdle) and have a long lasting trany. If your going to tune your truck, you will need to do this, the HP/TQ rating on the G56 is at the limit in our stock CTD's.

now that my friend is proactive !
Assembling these hd p/up transmissions is a chore I really need to stop by and see the set-up that these big builders are using. It seems to take 3 men and and a boy to hold everything together and drop it into its case. lol

 

[jgillott]

The DMF in the Dodge can fail, but there has been some high miles on them in the stock form. My issue with my clutch may be related to the DMF, but it will be replaced regardless of the condition when the clutch is replaced.

I'm likely going to do mine in the spring also. It's lasted much longer than I expected it to. I'm starting to have a slight RPM dependent vibration and a different sound from the clutch. I'm assuming that it is the DMF.

 

[jgillott]

The DMF in the Dodge can fail, but there has been some high miles on them in the stock form. My issue with my clutch may be related to the DMF, but it will be replaced regardless of the condition when the clutch is replaced.

I'm likely going to do mine in the spring also. It's lasted much longer than I expected it to. I'm starting to have a slight RPM dependent vibration and a different sound from the clutch. I'm assuming that it is the DMF.

 

[NIsaacs]

the HP/TQ rating on the G56 is at the limit in our stock CTD's.

Thats always been the case from day one, yet they all hold up surprisingly well with more power. I think the '13's are going up some in power. With only 43k on your transmission, I would change out the atf now and go with the Pennzoil if you haven't already. If you have it inspected you might as well install a bearing kit, you will be there anyway.



Like Bob said, thats proactive! I guess I am too thirfty, I don't think I could do that:-laf



Nick

 

[Bob4x4]

Thats always been the case from day one, yet they all hold up surprisingly well with more power. I think the '13's are going up some in power. With only 43k on your transmission, I would change out the atf now and go with the Pennzoil if you haven't already. If you have it inspected you might as well install a bearing kit, you will be there anyway.

Like Bob said, thats proactive! I guess I am too thirfty, I don't think I could do that:-laf

Nick

I doubt the manual 13 will be up in power but the Aisin should be great

 

[Regcabguy]

Rick, I am going to change out my DMF & clutch in the near future, (May) and had a long talk with Richard from Standard Transmission, who is now running the new shop in Tucson AZ. I'm going to have him tear down the G56 and inspect it, then have it filled with Pennzoil Synchromesh. Even though I don't expect to haul over 23K GCVW, I'm going to have a girdle installed on the G56 to keep the gears in alignment all the time. It only has 43K on it, but for just a couple of hundred dollars more, he will inspect it. The girdle is to prevent the case from twisting under heavy torque, it is a problem that has been known to destroy the G56, and according to Richard the parts are very expensive due to Chrysler's monopoly on them. So it makes since to me to buy insurance (girdle) and have a long lasting trany. If your going to tune your truck, you will need to do this, the HP/TQ rating on the G56 is at the limit in our stock CTD's.

Interesting that the Tucson store is recommending Pennsoil. When I spoke to someone at the other facility,they were recommending Amsoil ATF for lighter use and Amsoil MTF for higher hp or towing. Mercedes apparently recommends Mobil Delvac 50 or equivalent.
It's nice to have a closer shop to SoCal now.

 

[20Rick06]

some people recommend gorilla jiuce, is it any good?

 

[RVTRKN]

I would change out the atf now and go with the Pennzoil if you haven't already. If you have it inspected you might as well install a bearing kit, you will be there anyway.



Like Bob said, thats proactive! I guess I am too thirfty, I don't think I could do that:-laf



Nick

Bob, well its a lot of work and more cost to pull it again, if there is a problem with it. Adding the girdle is a little more proactive than I wanted to be, but it is important if I'm going to trust the transmission when I climb grades at 22K+ GCVW. The best time to do it is when the trany is out and and when you know the trans is in good mechanical condition. Its also an issue with the 3:73 rear, putting more stress on the trans to push the taller gear. If it had 4:10's maybe I might not have goon with the girdle, but it is what it is. I wish I never had to make such a big decision between the G56 and the Aison, If the NV5600 was available it would have been an easy decision to go with the manual. In late 06 there was little known about the G56 and I had a hard time finding true and accurate info on it, plastic gears come to mind. But I think I would still opt with the G56 if I was buying a 2013 C&C, it would be an Aison with the HO of the new reg. trucks in 2013. Bob, I came to this conclusion after talking to an expert on the G56, even though he didn't think it was necessary, he also said it would strengthen it, after all I'm not sled pulling with it and running at 400/1000 HP/TQ.



NIsaacs, it will only have 44K on it, when inspected, and the oil will be what Standard transmission recommends which is Pennzoil Synchromesh.

 

[RVTRKN]

Interesting that the Tucson store is recommending Pennsoil. When I spoke to someone at the other facility,they were recommending Amsoil ATF for lighter use and Amsoil MTF for higher hp or towing. Mercedes apparently recommends Mobil Delvac 50 or equivalent.

It's nice to have a closer shop to SoCal now.

I asked Richard about Pennzoil, because the article he wrote for TDR, I believe recommended it. And last time I heard it was Pennzoil Synchromesh, they may have changed their opinion in Texas, but I WILL NOT RUN ATF by any brand.

 

[CKelley1]

the gorilla juice is to thick. we run a fleet of 06 g56's all of the dmf's failed between 35,000 and 65,000 miles. all of the trucks except the one in my sig is set at 425 hp and 850 ft lbs torque. we tow very heavy. all have the southbend conofe kit. smarty jr 50 hp nozzles and pdr cam. each of the three gives 2 mpg increase. as for the g56 mix one gallon sae 50 synthetic syncromesh transmission fluid with one gallon 5w-30 synthetic syncromesh transmission fluid and use 7 quarts in the g56, you must do this to lube and cool the front bearing. we run trans-cools and 8 quarts in ours. the stock dmf has a mickey mouse pilot bearing that the guts of the dmf destroys causing damage to the housing around the front bearing. best to replace the dmf before it fails to the conofe. the sb has a real roller bearing in it.
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[CKelley1]

the gorilla juice is to thick. we run a fleet of 06 g56's all of the dmf's failed between 35,000 and 65,000 miles. all of the trucks except the one in my sig is set at 425 hp and 850 ft lbs torque. we tow very heavy. all have the southbend conofe kit. smarty jr 50 hp nozzles and pdr cam. each of the three gives 2 mpg increase. as for the g56 mix one gallon sae 50 synthetic syncromesh transmission fluid with one gallon 5w-30 synthetic syncromesh transmission fluid and use 7 quarts in the g56, you must do this to lube and cool the front bearing. we run trans-cools and 8 quarts in ours. the stock dmf has a mickey mouse pilot bearing that the guts of the dmf destroys causing damage to the housing around the front bearing. best to replace the dmf before it fails to the conofe. the sb has a real roller bearing in it.

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[Wingate]

Smarty Jr.