How often should we change the 8.8 diff fluid. Cause well. The just have a fill plug. No drain. So do I have to pull my pumpkin

 

No drain plug???

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OP

Kind of off topic, but how much power were you making when you blew your diff mid pull in 3rd? You ever launhc it?

 

Go pick up a vaccum brake bleeder. Attack a small hose that will fit in the fill hole and just suck the fluid out. I use an air operated one at my shop. Quite possibly the handiest cheap tool you can buy. Fluid change interval will depend on your lsd type and usage. If its clutch type and you beat on it, change it often. If its gear type you can go a lot longer.

 

It's gear type. And thanks for the info it was very helpful

Ps. I'm at 425 On 14psi. It broke right at about 6.5 k which is my peak tq. 300 or a little
More.

I wasn't launching the car. But that week I had 4 races. Had all 2nd gear brake boosting pulls. (smashed a built 2010 camaro) and I would slam 3rd.

The rear end blew 1-2 weeks later mid pull in 3rd on my street on my way home.

 

I would think just change as you would in car 8.8 came wit but ask lj. Also anyway to drill a hole and tap for a drain? May make the case weaker though.

 

John, you want to change it at roughly the first 5k miles. That will ensure that all the break in shavings are gone if there are some. Then change every year. Some guys go longer but it all depends on how much you drive it or how much abuse it takes. You must use a pump to transfer the new fluid in.

 

Thanks LJ. Always got my back

 

NP bud