Okay, now that my reply works.... I will go ahead and reply to this properly. Thanks Babywag for posting up my PM until I could post!
I ordered one of these DNJs off of amazon for 125 bucks. Seemed like a really good deal and all that considering it was NEW and seemed to be legit.
Well I got it in the mail Friday, and put it on Saturday. Nothing. Dead as door nail. I used to have a weak OEM pump that worked, now I have a dead new pump. Whether it was a fluke, I dont know, I dont really care. I sent my OEM one off to Lee Tuesday. He said my old one probably just had some bad seals (car sat for 4 years without turning over at all, you tell me).
Let me list off some things I noticed about the pump as I installed it and took the original out.
1. The housing is aluminum where OEM is steel/iron, I figure steel but really that doesnt matter
2. It spun well but was tight at the shaft
3. Shipped with plugs in the supply and pressure holes
4. Had some sort of lube in it to keep it from rusting I presume
Overall, it seemed really nice, the presentation was there. But I tried everything to get that stupid thing to go and it would not do a damn thing. So I put in a return request and I will get it torn down this weekend at which point I will get my rebuilt pump back mid next week. Hoo-frikin-rah!
Personally, if you have an original GM pump, have it rebuilt or get the ACDelco reman off rockauto. I cant vouch for any other company or pump at this point.
In my eyes, the only real option is to have your OEM one rebuilt. That way, you get the best possible pump money can buy.
94 RMSB 170K Sat 5 years, ran for 1 of those then remained untouched for 4. Sat because it was slapped by a deer and the owners didnt want to fix it for whatever reason.
Mods, all the free good ones.
Future? Probably pull engine, reseal it, and run it a lot more. Looking to get 250k out of it. PRAYING for 300k.