Diff Cover Drain

[Al Fernandez]

The OE rubber bushings are preferable than the urethane IMHO. The urethane just adds friction fore/aft and bind bump/droop. Neither is good.

[DAlgozine]

Not making eye contact.............or sounding off too loudly
But, bumps also tear up rear ends. Freeze thaw cycles north of the mason dixon cause ripples in tracks.
So, in this case...."bouncing rear ends", is not good.
Its is widely accepted that the 8.8 holds up to abuse better then the 10 bolt.

[JJKJ]

Adding to the discussion regarding an aftermarket diff cover, I tried unsuccessfully to get an RCR up for review twice. Second time I provided not only justification, but also evidence that they should be legal based on the fact they were an option on SLP cars. If all the other SLP factory options are legal, why not the diff cover?

I have a hard time rationalizing the arguments I've read against the covers. They are a durability mod, not a performance mod. No one is going to feel they "have" to buy one just because someone else has one. No one is going to feel they lost a race because their competitor crossed the finish line ahead of them due to the overwhelming performance advantage of their aftermarket diff cover.

This is the most ridiculous rule we have in CMC. As pointed out, aftermarket rear axles costing thousands of dollars are ok but a $150 cover is not. Regardless of the original intent of the rule (AS homogenization) the fact is the rule still stands and makes no sense.

Those who feel it is a waste of money don't have to do the mod. Allow those of us who feel there is a benefit the opportunity. I challenge anyone to say with a straight face that a $150 durability mod is going to push this class into spending whirlwind.

Bottom line though, as I brought up in my second RCR, why isn't a mod that was an option on the factory order form for SS Camaros not legal?

[DAlgozine]

Bottom line though, as I brought up in my second RCR, why isn't a mod that was an option on the factory order form for SS Camaros not legal?

I erased my smart a$$ answer, that I initially typed. It was difficult for me to do, but I'm turning over a new leaf.

[JJKJ]

I erased my smart a$$ answer, that I initially typed. It was difficult for me to do, but I'm turning over a new leaf.

How will I even know you?

[MHISSTC]

As one of the original rabble-rousers who brought up the topic of differential covers, I clearly still remember the exchanges on the national CMC forum when it was still an active place to hang out.

I never proposed any of the preload type aluminum diff covers, as I think those could be portrayed as having a potential performance advantage. Instead, my recommendation was a modified junkyard Explorer differential cover for the Ford 8.8 that would have added both a drain and a fill plug to the cover that had magnets on both of them, and included cooling fins and ribs for strength and lower temps to increase component longevity and make fluid changes easier. I wasn't suggesting one of those "expensive" GT500 kind of finned covers either. Check out the following link to learn all about modifying this cheap OEM Ford cover. https://www.svtperformance.com/forum...ny-8-8.653880/

[BryanL]

As one of the original rabble-rousers who brought up the topic of differential covers, I clearly still remember the exchanges on the national CMC forum when it was still an active place to hang out.

I never proposed any of the preload type aluminum diff covers, as I think those could be portrayed as having a potential performance advantage. Instead, my recommendation was a modified junkyard Explorer differential cover for the Ford 8.8 that would have added both a drain and a fill plug to the cover that had magnets on both of them, and included cooling fins and ribs for strength and lower temps to increase component longevity and make fluid changes easier. I wasn't suggesting one of those "expensive" GT500 kind of finned covers either. Check out the following link to learn all about modifying this cheap OEM Ford cover. https://www.svtperformance.com/forum...ny-8-8.653880/

So you recommend a cover that has ribs for strength, cooling fins for lower temps but are you against one that has preload which potentially strengthens the weak GM rearend?

The aftermarket cover for the GM isn't a performance advantage-unless you count potentially being more durable as an advantage. If you want to say it is a cooling advantage then whats the big deal since we allow radiators, coolers everywhere else.

JJKJ-send it it for another try. But not everything on an SS or SLP car is legal in CMC anyway.

It doesn't make sense.