Why is this so dang hard?

Why is it so hard to fix something that isn't broke?
I have a "uni ped" 7.25 rear end with 2:73 gears behind a mildish 5.9 Magnum and 42RH overdrive trans in my Dart and have driven it thousands of miles with zero issues for years now.
I could literally stop at the gas station, fill up and take off out of state without so much as even opening the hood to check anything, it's that reliable.
Right now there is a 8.25 Sure Grip with 3:55 gears and disc brakes, full of fluid with the additive sitting on jack stands in my back yard ready to go in and I have everything to do the swap.

Why am I hesitating?:realcrazy:
It's just that hard to take something apart that already works I guess.

I could use the excuses, "It's a holiday season" or "It's 45 degrees" or any other excuse, but that's all they are.
We have 3 other cars I could drive while mine is being done, and a buddy has a garage and has offered to help.

I need that "Swift kick in the ***" my Dad used to threaten me with when I was a kid I guess.:lol:
You've ran the reliable
Why is it so hard to fix something that isn't broke?
You've ran the reliable for so long that your unsure of the new. Happens to all of us. You think to yourself am I doing the right thing.
I have a "uni ped" 7.25 rear end with 2:73 gears behind a mildish 5.9 Magnum and 42RH overdrive trans in my Dart and have driven it thousands of miles with zero issues for years now.
I could literally stop at the gas station, fill up and take off out of state without so much as even opening the hood to check anything, it's that reliable.
Right now there is a 8.25 Sure Grip with 3:55 gears and disc brakes, full of fluid with the additive sitting on jack stands in my back yard ready to go in and I have everything to do the swap.

Why am I hesitating?:realcrazy:
It's just that hard to take something apart that already works I guess.

I could use the excuses, "It's a holiday season" or "It's 45 degrees" or any other excuse, but that's all they are.
We have 3 other cars I could drive while mine is being done, and a buddy has a garage and has offered to help.

I need that "Swift kick in the ***" my Dad used to threaten me with when I was a kid I guess.:lol: