Alto reds or Raybestos Z-Pack
 

Buying parts for my tranny rebuild and need advice on what brand of 3-4 clutches to buy. Alto reds or the Raybestos Z-pack. Pros and cons.
Thanks!
(Wish we had a transmission section on the CF!)

If 500 hp or less, either will be fine.

I used the reds in mine, although for other reasons it never quite ran right which forced a transition to the ZF6

Be carefull in your tool selection for removing those pesky snap rings..they're a pita with extra hot sauce.

Im a fan of Z Packs
 

Im running the Z pack in my rebuild. Very happy with it. It seems to grab solidly with WOT shifts. I dont know if that is normal for all nwe clutch packs. I guess I will find out.:rofl:

Hey Pete K. . . . Z pack is only good for 500hp or less? What would one use for a higher horsepower engine. Im figuring that if you have 500hp+ and you ride it hard, no clutch pack is going to last 100k.

I just meant that 500hp or less would not hurt either. Sorry for the confusion.

Thanks guys! Anyone else with info?

Since either clutch pack is good, what other components could you install. . . or mods you can make....to make the 3/4 pack last longer.

I left the 6 assist springs out of the input drum per raybestos' instructions.

I really didn't see anything else you could do to make the 3/4 pack work even better.

Pete K? any suggestions......I heard ur da man.

Pete K told me the 3 weakest parts of the 4L60E are the Reaction Shell, the Pump washers, and the 3-4 clutches. I am going to buy a Beast shell, looks like TransGo has a set of hardened Pump washers, but I was just confused on the clutches as Raybestos touts their "One sided clutches with less coning"
When I drag race I put it in D rather than OD and go throught the traps around 3500-4000 rpms, so maybe the 3-4 clutch selection is not that big of a deal....I am not that wise when it comes to transmissions. Pete Kane is Da Man!