So how do you make a good educated choice? I am sure that they both have their good and bad points.
Red Alto or Rybestos
- Thread starter 56taskforce
- Start date
Hell I was under the impression that some of the Raybestos clutches weren't what they were cracked up to be. Maybe they make multiple styles? I haven't kept up with that kinda stuff lately. Are you talking about the GPZ clutches?
It's an easy choice between the two you go with the raybestos GPZ clutches. Alto reds aren't even on the same page. Alto's carbonite c1's work great and the double sided carbonite c3/c4 work great too. Suncoasts non slotted GPZ's for c3/c4 are the way to go. The slotted version is no better than the reds in my opinion. There are some new options coming also.
My red eagle alto have lasted thru tons of abuse. From the beginning of 2011 till 3 weeks ago still no failure. Hundreds of passes over 750+ since then, towing the TT and DD. And maybe 10 passes in the low 11's. I'm a FIRM believer in your Trans will last depending on who builds your Trans. When Bodine went thru mine all he noticed was normal ware and said the clutches would have lasted much longer.
An Allison will not last at big power levels with alto reds no matter who built it. They served their purpose and have worked in many builds but we needed something better and that's what we have now. I'm not saying low 11's aren't fast but what happens to these transmissions in the 11's and what happens in the mid to low 10's and even 9's is not even comparable.
One of the reasons I ask this question is the info I have found seems to lay mostly on the side of pure opinion. Like anything else I am sure what works best in one situation may not be so for another. Otherwise what runs great turning out 9 second isn't going to do well pulling 25,000 lbs day in and day out.
That may be true for certain pressure mods, but as far as clutches go I'd say no. You want the best clutches available, I'd get gpz's for any application.
You are wrong the same clutches work just fine in both applications it's how the transmission is setup that makes the difference depending on application. If your not making big power either will work but you asked which is better so I answered your question. Anyone who builds these transmissions and says it's a matter of opinion which is better is clueless.
gpz's
I am just now going thru the LMM trans with Suncoast 6.3 GPZ clutchs. I also bought a set of alto reds for c5 clutch pack for piece of mind. I am concerned a bit about the raybestos c1's shrinking? I have heard about this and supposedly there are upgraded c1's to keep this from happening. I know George was running .390 plate to keep them clearanced.
I am just now going thru the LMM trans with Suncoast 6.3 GPZ clutchs. I also bought a set of alto reds for c5 clutch pack for piece of mind. I am concerned a bit about the raybestos c1's shrinking? I have heard about this and supposedly there are upgraded c1's to keep this from happening. I know George was running .390 plate to keep them clearanced.
The revised set I was sent to test didn't shrink when I tore my trans back down recently. You should be good to go.
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I've got a set to try in the c3s to should I ditch reds in c2 and c4s to gpz while it's apart?
These frictions do look promising. We tested a complete set in a transmission for our tow truck. Before we took it out, decided to slap the trans brake VB on to have some fun. They work great. No lubrication slots and oil retention patterns have been the way to go to handle power.