Differential Upgrade

I drive an 02 firehawk that didn't come with the optional Auburn differential. Should I upgrade it with a HD Zexel #65002. I race at the track once in a while, should I get this differential or am I wasting my money? Maybe a stronger rear-end? Input please. :confused:

Originally posted by Drumhawk
I drive an 02 firehawk that didn't come with the optional Auburn differential. Should I upgrade it with a HD Zexel #65002. I race at the track once in a while, should I get this differential or am I wasting my money? Maybe a stronger rear-end? Input please. :confused:

What is wrong with what you have? Or, to put it another way, what would be your goal in changing to a different type of posi?

Rich Krause

I thought that maybe this differential would be an upgrade. I just want to have the strongest and best parts in my firehawk. I thought without the optional Auburn I should do something. Some people mod out more horsepower and go for stronger rear-ends, I thought the Zexel would be an improvement but I'm not sure?

If you want to upgrade your posi unit, I'll sell you a brand new Eaton Posi unit, that I have..I couldn't use it b/c I have a series 2 carrier,and the Eaton is a carrier 3. The HD Zexal's are like $3-400. I'll make ya a deal. PM me about it..

Are you sure you didn't get the Auburn unit?? How do you check?

Well, I am not sure you will notice any difference. But the Eaton is a nice unit.

Rich Krause

I have the optional Auburn Rear in my LT1. Is this worth keeping and rebuilding:confused: My C-clip went out on my passenger side and now the whole housing is leaking.

Should I upgrade it with a HD Zexel #65002.

If you have an auto, don't change anything. If you have an M6, just don't put drag radials or slicks and you should be okay for a long while, but with the 10 bolt, it's a crap shoot.

cough*buy my Eaton*cough....:D

I have a Auburn Pro for sale with 4000 mile on it $300 plus shipping.