I'm a shade tree, and darn proud of it. Have all the credentials.
Since i'm being called out, i'll give my back ground 1st.
Grew up 3 miles from local drag strip(Route US 30 Drag Strip). Started helping my father on his 57 SuperChief in 68 at age 9. It ran low 12's in street stock. Then my bothers 11 sec FB in 71.
Since 75 i've had street and strip 1st gen FB's. Built and had many Pontiacs plus other cars. Worked in a chevy dealer wrenching from 77-82. Became a Pontiac GM parts manager after tired of working on cars i had no desire to. So i was/i'm there to see design changes/upgrades. I bleed GM/AC-Delco.
Helped build 1000 hp plus bbc engines with a buddy for 12 yrs. Not to mention sbc, ford, dodge engines, etc. We just got done building a 572 hemi with a 600hp n20 fogger to run 6's in the 1/4 mile.
Repaired and maintainced anything from 3 hp 2 cycle engines to 18 hp 4 cycles for friends and relatives.
3 yrs ago, a local racer had problems keeping his 8 sec Pontiac engine together, so i offered my help. Been together for 2 years. 77 TA/3700 lbs./best of 8.79 @ 162 mph. We rebuilt the engine in my DRIVEWAY! In case your wondering, an engine like that costs $17k to build and last. Thats right. $17,000. The car has $70K worth of parts/labor.
Ok, now the real issue at hand. Why would i post bs info? I'm here to help if i can. If i dont know, i say nothing. I dont know everything. Shoot, Joe(68BLKBRD) came over to help me trouble shoot why i had no wiper op on my 68 FB. After trouble shooting, we found out the previous owner replaced the ignition cyl and left the wire cut an disconnected. Thanks again Joe.
The price i quoted is what a person would pay for AC-Delco alt parts at a GM dealer or AC-Delco parts store.
Now i'm talking old days when it was cheaper to rebuild. Of course they can be had for less. No tech would build a worn alt with just 1 or 2 failed parts cause if 1 part he didnt change failed, it would be a come back. If everythings replaced, it's a failed/warrenty part. He gets paid to fix it again. Even though, who would change just 1 or 2 failed parts on a high milage worn alt?
Sure, you can get a reman Delco alt for less. In fact it's cheaper and better way to go.
BUT WAIT!
Are you getting a real Delco, or a Delco box with a "Rock" alt. GM, ford, and dodge have been try'n to catch off shore parts in reboxed factory cartons for at least 15 years. Not sure about you, but i dont want nothing but GM/Delco parts in my FB.
Tomarrow at work, i'll list GM and Delco parts #'s with my cost and suggested retail prices.