What does a 3:23 center section go for these days?

[Dino]

Since I now have 28" tall tires, my 2:96 gears are more like 2:75 gears so I may stick a 3:23 in there.  What does one of these go for?  Plain open 741, I'm on a budget (what's new...).

Stock tires are around 26" tall right?  Just in case I miscalculated.  Also, when going from stock to a 28" tire, what ratio would a 3:55 become?

[keepat]

I'm not sure of the price but this link will help with the RPM/speed #
Pat

http://www.tremec.com/calculadora.php

[Charger-Bodie]

a good rule of thumb in these cars is that you use the first two numbers of the ratio to get the gear you need. IE. 3.23 needs a 32 toothe ...3.55 needs a 35 tooth or rouned up a 36 tooth.

[John_Kunkel]

That's only true if the tire diameter is around 26".

[Charger-Bodie]

True

[Dino]

I'm confused, are you talking about the speedometer pinion gear?  I didn't know about the relationship you mentioned so thanks for that, but I was looking for the actual rear end gear ratio when you go from a 26" to a 28" tire. 

I had set my trans so it shifted into third around 30 mph or so, now that I have taller tires I find myself running in 2nd a little longer.  Instead of readjusting the linkage again I figured it may be a good idea to stick lower gears in the rear to get a bit more acceleration out of this old beast and still run low rpm at cruising.  I think the 3:55 may be a bit too low for my application but then again, it's just sitting here so I might as well give it a shot.  I think 3:23 may be right on the money but I can't find any open gears and I don't have the coin for a sure grip, nor do I need one.

[BrianShaughnessy]

Just keep checking Craigslist.  I picked up an open 3.23 489 awhile back for $125 IIRC.   

Then I got a True Trac diff from Summit instead of looking for a wasted stock cone sure grip.

[J.Bond]

I have been running a 28 inch tall tire on the Charger since 1985.It was an original open 2:90, and couple years go I finally got around to throwing in my 3:23 suregrip. It did put the car in a better power band, or better said, the car preforms a lot better. Because of the larger diameter, it really is not 3:23, I tried to google a ratio conversion, no luck, maybe someone knows where to find a conversion link. I, at this point want to also try a 3:55, thinking, it may ratio out at around 3:35 to 3:45 to compensate for the larger diameter tire.

[Dino]

Nice!  I'm installing a True trac when I get the 6 speed installed, that's a while into the future though.  

I'll keep checking CL.  

I have been running a 28 inch tall tire on the Charger since 1985.It was an original open 2:90, and couple years go I finally got around to throwing in my 3:23 suregrip. It did put the car in a better power band, or better said, the car preforms a lot better. Because of the larger diameter, it really is not 3:23, I tried to google a ratio conversion, no luck, maybe someone knows where to find a conversion link. I, at this point want to also try a 3:55, thinking, it may ratio out at around 3:35 to 3:45 to compensate for the larger diameter tire.

Right, I think the 3:23 is more around 3 even which would work for me.  3:55 with 26" tires did not do it for me though.  Not for my driving.  With a 28" tire it may be alright.

[J.Bond]

As for the original question. I paid 200.00 for a date coded 67 742 clutch style, needing a rebuild 4 years ago. Pick up another, 69 cone style 3:90 for 200.00 two months ago.