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#1571346 - 01/31/14 05:47 PM Re: 2.94 rear gears [Re: loren kraker]
383man Offline
Too Many Posts

Registered: 01/19/03
Posts: 26889
Loc: Balt. Md
Quote:

Quote:

Quote:

Well, I guess I'm the odd man out. I do have 2.94s in my 1970 Roadrunner and think it is a great gear for my combo and how I use the car. Running on the highway it is doable, and I have no problem with acceleration with a stroked 469 engine. In fact I was able to run a 12.48 in the 1/4 mile with this car. 3.55s are fun around town, but not on the highway with the engine screaming 3400 rpm at 60 mph while Hondas and Prius' climb our backs. It all depends on you set-up and how you intend to use the car.




3400 @ 60 sounds more like 4.30s than 3.55s, how tall are your tires 22 inches?





3.91 are 3000 @ 60mph with n50 tires





I agree with that about 3.91's. I run 4.30's and a 30" tall tire and I run 3200 rpm at 60 mph. But this eng loves it as it sings real nice cruisin along at 3200. Ron
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My car...63 Sport Fury Max Wedge wanna be street car..with new 493 pump gas full exh eng.......10.76 @ 124.49 ! ! ! My page on the cool 62-65 Mopar site ! http://www.1962to1965mopar.ornocar.com/mmo82008.html

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#1571347 - 01/31/14 07:39 PM Re: 2.94 rear gears [Re: GTX MATT]
469runner Offline
super stock

Registered: 01/07/04
Posts: 1086
Loc: North Carolina
Quote:

Quote:

Well, I guess I'm the odd man out. I do have 2.94s in my 1970 Roadrunner and think it is a great gear for my combo and how I use the car. Running on the highway it is doable, and I have no problem with acceleration with a stroked 469 engine. In fact I was able to run a 12.48 in the 1/4 mile with this car. 3.55s are fun around town, but not on the highway with the engine screaming 3400 rpm at 60 mph while Hondas and Prius' climb our backs. It all depends on you set-up and how you intend to use the car.




3400 @ 60 sounds more like 4.30s than 3.55s, how tall are your tires 22 inches?


OK, so I was guessing. I don't know the exact engine speed at 60 mph with 3.55s All I know is I've had my share of short gears in these cars, maybe its just old age, or being spoiled by my daily driver loafing along at 2000 rpm at highway speed, but I just don't believe we need to be winding these engines out to get good performance if we have planned our builds. For all out acceleration, I agree nothing beats torque multiplication.

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#1571348 - 01/31/14 07:57 PM Re: 2.94 rear gears [Re: 469runner]
larrymopar360 Online   content
top fuel

Registered: 01/07/11
Posts: 1700
Loc: Central Florida
I love them. I have them in all three of my cars. All have factory 15" wheels and 235/70/15 tires. One is MP 360, one is factory E58 360 and one is factory 318-4. They are perfect for me for mixed driving. I had 3.21 in another old police car that I also had a MP 360 and 727 trans and there were annoying after any more than about 15 minutes at highway speed.
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#1571349 - 01/31/14 10:01 PM Re: 2.94 rear gears [Re: larrymopar360]
a12rag Offline
top fuel

Registered: 04/23/07
Posts: 2130
Loc: Calgary, Alberta Canada
That was the original gear in my 74 Duster360. I went to 3.55:1 and really didn't notice that much difference, other than higher rpms on the highway . . . stock E58 360, 727 auto with factory stall convertor (approx. 2600rpm), and 235/60/14 tires. . . .

Before taking trip to Carlisle in 1999, change complete rear end out, for one from Gold Duster, with 2.45:1 gear !! YEAH !! I like to drive long distances, and this makes a great package, rpms are about 2600 RPM @ 70 mph, 22mpg all day long !! . . . haven't changed em since !

Gotta look at what you are using your car for, and build it for you !!!

Cheers

Mark

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#1571350 - 01/31/14 10:06 PM Re: 2.94 rear gears [Re: a12rag]
Doc Fiberglass Offline
I Live Here

Registered: 07/04/08
Posts: 17653
Loc: Paradise from ParaICE !
I have had a 2.76 in my 62 since the mid-90's ....would not have it any other way ...OTHER THAN maybe a weekend blast out on some "Telegraph or Woodward" action ... then a 4.88 or 5.13 would go in there
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#1571351 - 02/01/14 06:05 PM Re: 2.94 rear gears [Re: Doc Fiberglass]
rapom Offline
top fuel

Registered: 01/21/03
Posts: 1733
Loc: Northern OH
I got 2.94's in my 68 charger with a mild stroked 406 with A/C and power steering. Ran an easy 13.28 at the quarter and cruises are nice and easy. Also have a 67 Coronet with a 493, gear vendors and a 3.55. Haven't run it at the strip yet but I can tell you it cruises real nice.


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8021961-Chargersummer2011011.jpg (116 downloads)


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#1571352 - 02/01/14 08:12 PM Re: 2.94 rear gears [Re: rapom]
RodStRace Offline
I Live Here

Registered: 09/21/05
Posts: 12389
Loc: Chino Valley
I'd be interested in DR. Diff doing a 2.XX geared center section!

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#1571353 - 02/02/14 10:05 PM Re: 2.94 rear gears [Re: RodStRace]
moparcanuk Offline
pro stock

Registered: 11/23/07
Posts: 1522
Loc: Orleans, Ontario
I'm running 3:23 gears with 28" tires which is equivalent to 3:00. Since I mostly cruise as oppose to race, it's perfect. I can still light up the tires and get rubber between 1st and 2nd.
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#1571354 - 02/03/14 10:32 AM Re: 2.94 rear gears [Re: can.al]
jcc Offline
No politics

Registered: 12/21/03
Posts: 17158
Loc: Trumussia
FWIW, 2.94 and lower will not fit an Alum MP housing without a lot of grinding, I think, since I yet to grind on mine.
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Seeking more civil pastures

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#1571355 - 02/03/14 10:43 AM Re: 2.94 rear gears [Re: jcc]
closer9 Offline
top fuel

Registered: 01/28/04
Posts: 2150
Loc: SW MO
I've got a 2.94 Suregrip in my little cruiser with no complaints. I plan on running it till I can come up with an affordable overdrive setup. Cruises great on the highway, still chirps the tires around town, but then I've never implied I had a race car...
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Daily:
'02 Wrangler, 4.0L/5-spd
Belle:
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'64 C10, 283/3 on the tree

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#1571356 - 02/04/14 06:29 AM Re: 2.94 rear gears [Re: closer9]
Brian_wo Offline
master

Registered: 01/19/03
Posts: 4388
Loc: Omaha Nebraska
My 67 vert came with 2.94s,those are being replaced by a set of 3.55s.


Quote:

I've got a 2.94 Suregrip in my little cruiser with no complaints. I plan on running it till I can come up with an affordable overdrive setup. Cruises great on the highway, still chirps the tires around town, but then I've never implied I had a race car...


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who is that guy?

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#1571357 - 02/07/14 09:59 PM Re: 2.94 rear gears [Re: Brian_wo]
ERAT340 Offline
member

Registered: 12/24/08
Posts: 37
Loc: Sacramento
What do yall thinkof this . Finishing up a Brewers 4 spd conversion, had him install a 309 1st gear, have a 2.76 rear, 340, mild 60401 voodoo,750 Holley HP, and 295-50-15. Havent tried it yet should be fun.

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#1571358 - 02/07/14 11:03 PM Re: 2.94 rear gears [Re: can.al]
mcmopars Offline
super stock

Registered: 02/08/04
Posts: 1012
Loc: indiana
Quote:

..for those using this gear set,how do you like it.
..long duration cams need not apply.





depends on what you are after,for the most part they are sh#t for a reving 340.i mean who would want an a body with a 340 with those gears?unless your going to calfornia.i wouldnt.355 or 391

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#1571359 - 02/07/14 11:07 PM Re: 2.94 rear gears [Re: mcmopars]
mcmopars Offline
super stock

Registered: 02/08/04
Posts: 1012
Loc: indiana
Quote:

Quote:

..for those using this gear set,how do you like it.
..long duration cams need not apply.





depends on what you are after,for the most part they are sh#t for a reving 340.i mean who would want an a body with a 340 with those gears?unless your going to calfornia.i wouldnt.355 or 391





sorry dont where the a body 340 came from,still unless you have a 5-6 speed

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#1571360 - 02/10/14 08:50 AM Re: 2.94 rear gears [Re: mcmopars]
floridian Offline
pro stock

Registered: 08/10/12
Posts: 1574
Loc: Lakeland FL
Thought about this thread while driving my car this weekend.. My stock ( 375HP) 440 really does move my car around with the 2.94 gears really well.. Surprises me how fast it does get off the line and get to 50 really quick.. Makes me wonder if I do want to spend the money for higher gears and a GV overdrive....

OH, it was sunny and 72 here on Sunday....


Attachments
8034060-5554552-vertbaseball2.jpg (126 downloads)


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#1571361 - 02/10/14 10:30 AM Re: 2.94 rear gears [Re: floridian]
rapom Offline
top fuel

Registered: 01/21/03
Posts: 1733
Loc: Northern OH
I wouldn't. I would enjoy the 2.94 gears and spend or save your money elsewhere.

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#1571362 - 02/10/14 11:46 AM Re: 2.94 rear gears [Re: rapom]
Paul_Fancsali Offline
master

Registered: 01/21/03
Posts: 2928
The sound of a small block going 3800 is music to me if your looking for gas mileage get a new car if you like to run fast up hills etc get3.55 3.91-4.30-4.56s. I will not even consider anything under 3.23. Consider that most of the older cars seldom see more then a few times out during the summer why worry about the rev's{ drive the car don't leave it as a hanger queen}If your car can't handle it then sell it and buy a new car and save the worry

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