What auto trans was used in the 92's?

[ACF]

It is x-cab long box. 4wheel drive.

 

[bmoeller]

Do you have O/D, or no?

 

[Philip]

A 92 should have a 518 trans. This is a OD transmission. Dodge started using them in 91. 5. Intercooler added at the same time.

 

[ACF]

Info

Yes it does have O/D. Is the 518 any good? How long did they make them with it? Based on the 727 TF? What if it does not have O/D, which auto with them?

 

[stakedd]

the 518 can be a good trany. a good rebuild makes all the difference

 

[Philip]

The 518 is just a 727 with a OD unit added into the tail housing. It was used in the diesel's from 91. 5 threw 93. In 94 the 618 was installed. It has a lockup converter.



If you don't have OD. Then it would be a 727. A PO would have had to installed it. With 3:54 gears and no OD you would top out around 70 maybe.



The 518 is just as good as the 727. Keep up on fluid changes and band adjustments and it will last for a while. If you tow heavy put a trans cooler on it. The factory one is light if you tow heavy.

 

[ACF]

What came after the 618? When did the 4* R series start? And are these including today's 48RE based on the 727?

 

[Philip]

The 618 is also known as the 47RH transmission. It was the first in the 47 series.



It had about the same issues as the 518. Heavy loads and using OD all the time usually caused problems with the OD unit. The stock converters would not hold over 350 HP or so.



I haven't looked a 48 series over. But as far as design I bet it isn't that far away from the 727. Just larger parts and computer controls added.

 

[cerberusiam]

The 518 was an 'R' series trans also, 46RH. The 618 was designated 47RH, slightly heavier than the 518 but not much.



In mid 96 the 47RE was introduced and used to early 2003. The RE has had a few upgrades in clutches and hard parts to address the issues over the years but the design is still 727 with and OD and lockup TC. The RE's biggest change is an eletronic controlled governor instead of the hydraulic one.



The 48RE is the end of the 727/OD/Lockup TC design. Bigger parts, steel 6 pinion planetaries, more clutches, larger pump. Still the same sloppy converter though. Still pretty much the same as a 727 with OD only with a few more patchwork electronic controls that confound and confuse at times. :-laf



The next generation Dodge auto, awaited anxiously I might add, is the 68RFE due to start shipping in the 2500/3500 trucks Jan 07. Six forward gears, good splits on the gears, and a double OD. Oo.

 

[ACF]

Ok so the number 6+6 speeds. What does the R and the F stand for? I know the 2nd # is the strength catagory.

 

[cerberusiam]

In the 47RH/RE designation:



1st number = forward gears



2nd number = stength (1-9)



1st letter = drive configuration (R = rear, F = front)



2nd letter = shift control (H = hydraulic, E = electronic)





The shift control gets confusing as these trans are not fully electronic, only partial, while a lot of the gassers are fully electronic. In the case of the diesel trans E only refers to the OD and governor controls not the whole VB.



The FE designation I believe stands for Fully Electronic for the shift control as that is how it was exlained to me. However, I have seen 68RE and 68RFE both used to describe the new trans so ones persons opinion and designation may conflict with the next. I have been told the new trans is fully electronic shift controlled so the RFE makes sense, unless the 48RE is discontinued then everything will be fully electronic and the RE would then be applicable to all models.



Its an AFA so who knows what the plan is.