[81FIREBIRDESPRIT]

My 1981 Firebird has 2:41 gears in it, how much of a dog to you think these gears are makeing it? As of now it is at the shop haveing a new eaton posi track and some 3:73 gears put in. It has a chevy 350 with a comp cam dur 222 with a lift of 447, speed pro flat top pistons 9:5 comp, With a edlebrock preformer intake, edlebrock 650 preformer carb, flow tech headers, all has been balanced, How much of a diffrence to you think I will see with the new gears?

[Ghetto Jet]

I would tell you but I don't want to ruin the surprise.

[astroracer]

Originally Posted by Ghetto Jet

I would tell you but I don't want to ruin the surprise.

What he said...

[KNanthrup]

hmmm... hehehe you will find out soon eough

[81FIREBIRDESPRIT]

Your putting a smile on my face

[M&M CUSTOM]

Originally Posted by 81FIREBIRDESPRIT

Your putting a smile on my face

NAH, they are just yanking your chain.

If they do the complete job and also change the speedometer gears, you "might" like the change.

Just be careful you don't snap your neck when you mash the GO pedal.

You might also look into having to change the whole axle later on if you decide to do too many neck snappers to show off to your friends, the 7.5 inch axle isn't known for it's strength.

[Ghetto Jet]

I don't think they went to the 7.5" rear until 82 when they went to the third gen. body style. I could be wrong though.

[M&M CUSTOM]

Originally Posted by Ghetto Jet

I don't think they went to the 7.5" rear until 82 when they went to the third gen. body style. I could be wrong though.

No, you're right 1982 was the first year for the 7.5 in the F-body, his 81 should still have the 8.5 inch.

[81FIREBIRDESPRIT]

WOW++++WOW Got it back from the shop, Made a world of difference. Thanks for the replys!!!!!!!!!!!!!!!!!