Difficulty in changing rear-end gears?

[praugue]

I'd ultimately like to have a 2-speed rear-end, but ...

How difficult, or expensive to have it done, is this job? I like the stock 3.27:1 in the 92GT, but it sure would be nice to "drop in" a 2.73:1 for longer trips and general cruising.

In fact, I'd like to have 3.73:1 for snappy response around town and the 2.73 for cruising.

Is it difficult to DIY or expensive to have it done?

Thanks.

Here's the intended victim.

1992 GT

 

[TRWXXA]

It can cost you anywhere from $250 to $400 to have the gears changed. And that's if you provide the parts.

Rear gears do not just "drop in" to an 8.8 rear end. It's a pretty detailed process, and one not easily accomplished by a novice.

The 3.27s are a good compromise gear. You might only gain 1 or 2 mpg on the highway by going to 2.73s. If you want something more "snappy", you could go to 3.55s. You would only lose about 1 highway mpg from what you are getting now, and some folks actually see better city mpg with the higher gear ratios.

 

[daviszx3]

i just swapped my gears out to 373's i used the old shims and bearings and no noise in the rear at all but still not the job for a novice

 

[cobradvm]

Didn't know they made 3.27s as a stock gear - are you sure you don't mean 3.08s? 3.55s would be a good choice.

 

[lang williams]

3.27's were stock for 99 up an 93 cobra i believe

 

[montegoman351]

Have Currie make you a 9 inch rear end then you'll have drop in gears

 

[praugue]

I'm pretty certain that the door panel code was for 3.27:1. I'll check it again, but it was easy to remember since my LX has 2.73:1.

 

[PUNISHER RACING]

I will make you a good deal on a set of 3.31's outta my 07 GT

 

[praugue]

Good info. Thanks.

I wouldn't mind trying the 3.31's, but it looks like I'll just have to leave the LX (2.73) for cruising and the GT for around town.

A 2.73/3.73 two-speed rear-end would be the killer product I'd want.

 

[Fox8950]

Yeah that would be pretty nice, who makes these 2 speed rear ends?

 

[7-UP BILL]

3.27's were the optional gear for AOD's. Door code "E".

 

[lang williams]

i've seen one two speed rear end on horsepower tv, it was in an early 60's pontiac "heavy duty" drag car, that with the power glide made it a 4 speed. you could get a two speed xfer case btwn the trans an drive shaft, put you'd have to put some 410's in the back an use the xfer case on the highway. that dude on trucks put one in "copperhead".

 

[praugue]

3.27's were the optional gear for AOD's. Door code "E".

There we go. Thanks. It's an AOD GT (odd, yes, but it has very few miles on it).