Posted By: 3forty
904 pump conversion - 04/19/16 02:25 PM
What is involved to use the A500 flat type pump gears in a mid '70s 904 pump?
Posted By: Evil Spirit
Re: 904 pump conversion - 04/19/16 08:19 PM
Should just be installing the 93-04 pump gears which have flats in the place of the lugged style gears. At that point it's just having the correct converter - lockup/non-lockup, correct input spline count, etc. along with the pump drive with the flats. I've done quite a few with no issue.
Posted By: 3forty
Re: 904 pump conversion - 04/19/16 10:12 PM
I thought you might have to use the front cover off an A500 pump.
Posted By: HotRodDave
Re: 904 pump conversion - 04/20/16 12:00 AM
You can not just swap the gears, they are bigger diameter.