Broader C6 Oil Mods?

[galaxiex]

Appreciate that, I'll see what I have and let builder deal if its missing.

Is .020-.030 clearance in the forward drum with or w/o the spring plate?

I picked up the thinner, early Belleville spring. It sounds like I could have gone with the later spring though instead? Worth getting another one? Assume have to make up for this elsewhere in the stack though huh?

.020 -.030 clearance is fine in either forward drum.

Should not mix belleville springs from early and late.
Use the correct spring for the drum you use.


Early thin belleville in a late drum means the belleville will be loose in the drum, not good.


Late thick bellevelle in an early drum, you will have a helluva time getting the snap ring in, if at all.

[galaxiex]

   I have an NOS Ford Motorsport high drum in the original box. The snap ring groove placement "looks" like a 4 clutch but these were sold as 5 clutch. Is that possible? I compared it to my used "original" CJ  5 clutch drum and saw the difference. I didn't test fit it for 5.
    Randy

If early spec. and you end up wanting to move it, let me know.

High clutch drums.... any fit any year, only difference is the number of clutch plates.

General rules...

A 3 plate drum can be converted to a 4 plate.

A 4 plate drum can be converted to a 5 plate.

You CANNOT convert a 3 plate to a 5 plate.

The conversion is easy.

Take your 4 plate drum and install 5 frictions and 5 steels. No top pressure plate yet.
The stack will be very close to the snap ring groove.
Use a spare FORWARD CLUTCH bottom beveled pressure plate upside-down on top of the stack, and then install the snap ring.

Same for a 3 plate to 4 plate. except of course, only 4 friction plates total.

Alternatively you can cut/machine a new snap ring groove higher in the drum to get an extra plate and still use the normal top pressure plate.
This works for 3 to 4 and 4 to 5.

If you have a 3 plate drum and try to cut a snap ring groove high enough to install 5 plates...

... the second last steel plate will get hung up in the original snap ring groove and..... carnage!    You don't want that.

[Jackal]

Looks like Broader's instructions mention eliminating the waved spring to get an extra one in there, but advises against using a lower pressure plate due to the leverage of the disc spring. Guess if he can source one for reasonable price Ill step up, otherwise Ill prob. settle for 4 disc.

Think I've settled on Stage 4 calibration w/o the VB channel cut, and the stiffer Shift Command spring w/o hex nut.

[Jackal]

NVM

[cammerfe]

I used to be possible to buy a specially-made 044 drum from TCI. You might check. It's been a while, but I think it even made possible a 6th clutch plate/steel. (Maybe I'm wrong)

KS

[Jackal]

Thanks cammer.

I ended up with a pre-5/10/1967 unit that has a 57-tooth front ring gear vs. the later 90-tooth count. We sourced the pricey 57-th frictions, but is there any benefit to replacing the front ring gear with a 90-tooth unit? If so, are ANY other changes required?

I'm sending the VB and forward drum to Jay to have the shift kit installed, lube holes enlarged, and a new snap ring groove cut to hold #5.