2nd Gen Non-Engine/Transmission NEW Aftermarket Gears for Dana 80 available

[HEMI®Dart]

Not sure if this has been posted before. Motive has 3 ratio's available for the 80. They are pretty deep.



http://store.summitracing.com/default.asp?target=egnsearch.asp&N=401013+4294918962+4294902523

 

[redram]

What we really want is a 3. 73:1 ratio!



Don't need a higher one - need one between the 3. 55:1 and 4. 10:1 offered stock.

 

[B KIRK]

Wish someone would make 4:56 to go with the ones I have for the front.



Brad

 

[kscheffler]

DOes anyone know how many ring gear teeth on the 4. 10?

 

[HEMI®Dart]

Wish someone would make 4:56 to go with the ones I have for the front.



Brad

Isn't the 4. 63 close enough? :-laf Test it out on dry pavement. :-laf

 

[HEMI®Dart]

Now I see Precision Gear has Ring and Pinion sets for the Dana 80 too.



http://www.precisiongear.com/dana80.htm



More here too:



http://www.drivetrainspecialists.com/categories/dana/dana-80/randp-1.html



More:



http://www.reiderracing.com/dana80.htm

 

[bmoeller]

What we really want is a 3. 73:1 ratio!



Don't need a higher one - need one between the 3. 55:1 and 4. 10:1 offered stock.

The gear ratios listed on the Summit site are lower gears, not higher. Lower gears are numerically higher. 4. 10s are lower than 3. 55s.



Me personally, would like a set of 3. 90 gears all around on my Ram. Have a set of 3. 90 in the KW. The 2 Macks we have, one has 4. 17s and the other has 5. 13. The 3. 90s have a little more speed than 4. 10s, and still are a great pulling gear set.

 

[Dave Ratcliffe]

Can the dealer only reflash the PCM for 3. 54 or 4. 10's? Or can they enter any ratio?

 

[drrhoades]

4. 10 ratio has 41 teeth on the ring and 10 on the pinion

 

[Bob4x4]

Can the dealer only reflash the PCM for 3. 54 or 4. 10's? Or can they enter any ratio?

The gear ratios do not matter



Bob

 

[bmoeller]

I think, as long as they know the revs per mile, they can adjust it to whatever you need. If they could only go by the gearset, that would seriously limit what they could do in relation to the change of mph vs. tire size.

 

[Cooker]

On my 12v I would like a taller gear than the 3. 55's I currently have. It really seems to like 1700-1800 RPMs cruising down the highway.

 

[redram]

The gear ratios listed on the Summit site are lower gears, not higher. Lower gears are numerically higher. 4. 10s are lower than 3. 55s.

Depends on your perspective - I road race and going to a numerically higher gear ratio number means just that - a higher ratio.



I guess if you're a drag racer or rock crawler - your perspective is slightly different.



But - what ever and hope you have a Happy New Year and a safe one too -

 

[Ol'TrailDog]

You can only reflash the 3Gens. The older straight mechanical 12vs have an adjustment knob in the jockey box.

 

[biggy238]

12v's don't even have that... they have two settings... for the two factory tire offerings. . the rest has to be done with the speedo gear (and I don't mean your pink stripped ones either)

 

[Dave Ratcliffe]

You can only reflash the 3Gens.

You can change the PCM for tire size on 24V 2nd Gens. But not for gear ratio? So would you need to buy a 4. 10 PCM?

 

[dodgeguy44]

Has anyone tried 3. 08 or 3. 21 gears in a 98 3500 5spd? I am trying to gear mine for 1700-1800 at 110kph(70mph).



I am also trying to find the calculation for final ratio at a certain road speed and rpm.



Thanks

 

[Ol'TrailDog]

You can only reflash the 3Gens. The older straight mechanical 12vs have an adjustment knob in the jockey box.

It was suppose to be humor... . rather lame, I must admit. Sorry for the confusion and exposing my general dopiness

 

[dodgeguy44]

Now you tell me... ... ... ... ... ... . I had the Jockey Box empty and the Manual out

 

[Nate]

4. 10 is a lower gear ratio than 3. 55...



It's not perspective... it's the way it is.

Depends on your perspective - I road race and going to a numerically higher gear ratio number means just that - a higher ratio.



I guess if you're a drag racer or rock crawler - your perspective is slightly different.



But - what ever and hope you have a Happy New Year and a safe one too -