great421

iTrader: (1)

All -

My oil pump drive failed - the plastic portion broke at the hole for the hold-down bolt.

So, I replaced the unit - no problem.

However, after I buttoned everything up, my brother suggested machining an Aluminum unit for me, and I only had the old / broken unit for him to measure.

So, can anyone give me the spacing between the two holes on the top of the oil pump drive unit and the thickness of the plastic material around the hold-down bolt?

Thanks!

97Z28SS

iTrader: (5)

Shon Herron makes one already if you're pressed for time.

great421

iTrader: (1)

YES!

I saw that he did (past tense) make them - but as of a month ago, I could not find a valid / working web site, email address, or PH # for him - if you have one LMK!

Thanks!

fex77k

iTrader: (2)

I have a stock one with a metal holddown

great421

iTrader: (1)

Both units I've purchased from the local Chevy dealer were metal shafts encased in plastic. Was yours a 'special' GM High Performance unit?

If so, do you know the P/N or can you get me the dimensions I need so I can have my brother fabricate one?

LMK - Thanks!

jaycenk

iTrader: (1)

Just buy one of these for the stock unit. Made by a member here. http://pro-jectioneng.com/ Far less expensive and just as effective.

great421

iTrader: (1)

That is an elegant solution indeed!

Thanks for the info!

fex77k

iTrader: (2)

I just have a stock one with the projection plate on it.

leadfoot4

iTrader: (1)

Same here...I "bookmarked" his webpage, "Herron Performance", several months ago, but the link no longer works.

speed_demon24

iTrader: (6)

A flat piece of sheetmetal has very little strength to it. I made one that's a u channel and 100x stiffer than that.

leadfoot4

iTrader: (1)

I agree.