Big input clutch fork question

[Specialk]

I have been having some trouble getting my hands on a clutch fork for a big input toploader. They seem to be rare and when found are rather pricey. I have found one, but while I was waiting for it to arrive, I did some searching on Google. What popped up was a page from ERA's manual about the forks required. For the big spline input it has the following noted:

Ford C8OZ-7515-D (May be hard to find. As a substitute, ERA widens the small spline)

My question deals with the widening. Has anybody ever done this? I had thought about it, but there doesn't seem to be enough meat around the fork to remove for clearance. Does anybody have photos?

If I could figure out how this is done without weakening the fork, that would be awesome. I can get the small spline forks for $30 a piece at Napa and they always have several in stock!

Thanks

[Sal Gerace]

David Kee has the repops at $125.00 C8OZ-7515-D

[trularin]

The fork is case hardened and very hard to work. Die grinding will take multiple tools to get it fit.

I found two over the period of shopping parts. One was supposed to be a BIO, but ended up being the smaller unit. They are close enough that you may think the smaller will work, it does not.

Just my $0.02 worth, buy a correct unit.

[Specialk]

Sal,

David is out of stock for now. He said he will get them in soon, it's just my luck that he's out now.

trularin,

Yeah, I just got the right one. Maybe I will experiment later with modifying a small block fork.

[sharpe 1]

Check with national parts depot. Thats where I got mine.They are on line. Do a web search for npd.

[Specialk]

How much was it? Thanks.

Originally posted by sharpe 1


Check with national parts depot. Thats where I got mine.They are on line. Do a web search for npd.

[Excaliber]

My big input fork is:

D00A-7515-A

...just happen to have it on hand and freshly painted!