Gears for rear end? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Gears for rear end?

Print Thread

Gears for rear end? #1228938 05/07/12 03:39 PM 05/07/12 03:39 PM
Joined: Sep 2009 Posts: 104 Canada F Flatblack OP member
Flatblack OP member F Joined: Sep 2009 Posts: 104 Canada	My dads friend thought he had a set of 3.91 gears for my 72 charger, but he figured they would not go with my 12 bolt. So then he found a set of 3.55 gears in a 14 bolt out of a 73 road runner or satellight? I am just seeking some clarity to figure out what a good set of gearing ratio would be suitable for my 72 charger. Curious who has used what and what they think of it? thanks Josh K. Thankx, just a student trying to save a buck! flatblack68@gmail.com

Re: Gears for rear end? [Re: Flatblack] #1228939 05/07/12 03:41 PM 05/07/12 03:41 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	I like 3:55 for my street cars.

Re: Gears for rear end? [Re: Flatblack] #1228940 05/07/12 03:51 PM 05/07/12 03:51 PM
Joined: Jan 2003 Posts: 541 chatham, Ilinois F fox super street
fox super street F Joined: Jan 2003 Posts: 541 chatham, Ilinois	Quote: My dads friend thought he had a set of 3.91 gears for my 72 charger, but he figured they would not go with my 12 bolt. So then he found a set of 3.55 gears in a 14 bolt out of a 73 road runner or satellight? I am just seeking some clarity to figure out what a good set of gearing ratio would be suitable for my 72 charger. Curious who has used what and what they think of it? What engine and mods? Highway or in town? Don't go too low, (or high numerically.) thanks Josh K.

Re: Gears for rear end? [Re: fox] #1228941 05/07/12 07:59 PM 05/07/12 07:59 PM
Joined: Feb 2004 Posts: 1,012 indiana M mcmopars super stock
mcmopars super stock M Joined: Feb 2004 Posts: 1,012 indiana	i think most agree 355 is a good street/strip gear

Re: Gears for rear end? [Re: fox] #1228942 05/07/12 08:03 PM 05/07/12 08:03 PM
Joined: Feb 2010 Posts: 2,806 Northern NJ StukaJU87 master
StukaJU87 master Joined: Feb 2010 Posts: 2,806 Northern NJ	I have 3.55's in my wagon. 440/727. It is a good all around gear for street and some highway. I am turning about 3000rpm at 60 or so mph. 295-50/15 drive tires. Scott 1969 Super Bee, 383/4 speed

Re: Gears for rear end? [Re: Flatblack] #1228943 05/07/12 08:04 PM 05/07/12 08:04 PM
Joined: Aug 2003 Posts: 12,589 Sacramento, CA cal_gecko I Live Here
cal_gecko I Live Here Joined: Aug 2003 Posts: 12,589 Sacramento, CA	depends on how you're planning on driving it. If you plan on running it at the drag strip frequently, and not doing as much driving around town/highway.. then go for the 3.91's. If you're looking for a good 'compromise' gear ratio, that will give you a good ratio for around town/highway driving as well as decent off-the-line performance, go with the 3.55's. That's what I've got in mine (not that I've ever driven it, but that's what I've got)

Re: Gears for rear end? [Re: Flatblack] #1228944 05/07/12 08:13 PM 05/07/12 08:13 PM
Joined: Sep 2009 Posts: 104 Canada F Flatblack OP member
Flatblack OP member F Joined: Sep 2009 Posts: 104 Canada	thanks guys! Thankx, just a student trying to save a buck! flatblack68@gmail.com

Re: Gears for rear end? [Re: Flatblack] #1228945 05/07/12 10:27 PM 05/07/12 10:27 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	I think 3.55 works well with taller tires... 27-28". With tire diameter near original 25" or so 3.23 works better.

Re: Gears for rear end? [Re: Flatblack] #1228946 05/08/12 03:22 AM 05/08/12 03:22 AM
Joined: Jan 2003 Posts: 70,126 Here DirectSubjection Tacohead. The First and Only
DirectSubjection Tacohead. The First and Only Joined: Jan 2003 Posts: 70,126 Here	Automatic trans? Stall speed? Tie size? Cam specs? Ride eternal, shiny and chrome

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1