Is an 8.25 rear with 2.74 gears upgradable to better gears?

[392Mopar]

Hello,
I was wondering if an 8 1/4 rear end with 2.74 gears is upgradable to say 3.55-3.91's? I heard that some of the rears with lower(numbered) gears are different than the higher (numbered) gears,the housing and carrier was different, but I dont know what the cutoff is. Thanks. Looking into rears for my 72 Duster and want to get something that I can put better gears in.

Butch

 

[memike]

You will like the 3.55 gears if you are looking to get that big take off low end power, Good gear for an upgrade and i am sure it will change right out.

 

[grumpuscreature]

2.45 gears used a different carrier. Above that will swap. So, yeah, the 2.74s will take a 3.55 or 3.91 gear.

 

[392Mopar]

Thanks,
I knew there was a difference , just didnt know the cutoff point.


Butch

 

[venomvpr900]

grumpus hit the nail on the head, I would recommend checking out randy's ring and pinion ringandpinion.com they have alot of options and if you have quesitions you can call them up - I've had great experiences with them