JAX04

iTrader: (17)

ok, So i bought this Rock on 4l60e last year from a gentlemen on the forum here, Im not upset with what i got, after all i knew there was an issue with it. This thing has been inside my garage since i bought it a year ago.

Now that my factory trans is going, and will not allow me to finish my turbo build, i decided to take it to a person i know for going through and to see if its worthy of being used.

First off, it didnt look that bad actually, Pics coming, Close up pics anyways. The clutches all need replaced,


it did have the red eagle alto band, and beast sunshell installed already. most of everything that was said to be done was done, but we are pretty sure that the input shaft is not a hardened unit or the output.









Builder was wondering whats better about the aluminum accumulator pistons then steel?

and im wondering what the best clutches for this build are? trans will likley need to handle about 550 whp/wtq

we are ordering all new clutches this tuesday, a new band, and some other new goodies, but other then that, the trans seems to be in pretty decent shape.

and is there anything else i should be doing while im in there?

performabuilt2

from the burn marks on the wide band it looks like your reverse drum is not flat I wouls suggest getting a new reverse drum or resurfaced. make sure it has the double cage sprag. Are you referring to steel molded input drum pistons? if so they are better because they dont crack as opposed to the aluminum pistons. as far as clutches you will hear alot of ,different things because we all build different. you should be good wih the stock borg warner clutches for the forward, reverse and overun however for the 3-4 I personally like the z-pack or the blue plate, but to be honest the 3-4 pack alot has to do how you set it up. I have seen stock high energy 6 clutch stack withsatnd some abuse just because it was setup right.

JAX04

iTrader: (17)

thank you for the input, the builder had suggested to go back to the steel molded pistons as well, i was just wondering if there was a good purpose for that or not, i will also mention to him about resurfacing the drum or replacing it all together.

He was also leaning towards the borg clutches. But he did mention raybestos as well. i will likely tell him to use the zpack.

Hes usually just a rebuilder and doesnt get into the "high performance" builds to much, but he seems to be right on par with what other builders have thought. Thanks performabuilt.

performabuilt2

if the unit has the sleeve on it you will not be able to use a steel molded overun piston due to the sleeve you will have to use the aluminum piston the overun piston i see in the pic looks like the sleeve piston

JAX04

iTrader: (17)

i believe you are correct with that statement, i will let him know, we will just use it for now, and maybe down the road when more power comes, we will upgrade everything else. thanks a million.

performabuilt2

the aluminum overun isnt a problem the aluminum forward pistons crack ALOT, you will be fine with the piston however Circle D does have a billet sleeved piston

JAX04

iTrader: (17)

excellent, How hard is the vacum mod to setup?

performabuilt2

to be honest I have not personally done one I really myself dont think its necessary for most applications. I just le the computer do its thing and find a good tuner

JAX04

iTrader: (17)

yeah, i agree, unfortunatley, this is a vaccum modded trans. so im not sure i can go back to the electronics?

performabuilt2

well then just hook a vacumm source to it, manifold vacumm not ported vacumm

JAX04

iTrader: (17)

ported vacumm?

performabuilt2

ported vacumm would be anything in front of the throttle plate manifold vacumm is behind

JAX04

iTrader: (17)

lol, gotcha, def, was gong to "T" off my brake booster line

performabuilt2

yeah just dont T of of the PCV

JAX04

iTrader: (17)

Lol, Good call on that one

performabuilt2

if you have any question feel free to PM or IM godfreyrobert@yahoo I am always willing to help

JAX04

iTrader: (17)

thanks a million man!

FLT

iTrader: (1)

Pictures of the input shaft and the output might help to see if they have the ID marks for the hardened shafts. From what you have posted it's hard to tell.

JAX04

iTrader: (17)

iim going back to my builder on thursday to finish putting it back together/fixing it. What should i look for to see if it does have the hardened shafts??

Also, Is there anything i should be telling him to make sure he does. As stated, hes doing this as a favor and is not used to building high perf transmissions. He does build transmissions for trucks for hauling and what not. But this is different.

JAX04

iTrader: (17)

alrighty then.