Hey I have a 700r4 I’m helping a buddy rebuild. I’ve done 2 4l60e rebuilds for myself that worked perfect

i noticed on the 700r4 the apply plate is a lil diff design. The 60e uses a diff apply plate that’s is thicker and not a 2 pieces like the 700.

now I have a few questions:

from wht I read the 700r4 uses a thick steel on top of the apply plate thin a friction. With a 5 friction stack up. Is this correct?

the 60e uses a thick legged applied plate with a friction directly on top. With a 5-7 clutch stack up. Is this correct?

so with that said does a 700r4 need the thick steel before a friction, unlike the 60e stack up. We installed it without, basically like a 60e setup. Would this cause any issues? Stack up ended with backing plate just below snap ring groove. This is how I always set clearance in the 60e setups.


also if I need to tear back into this thing to change the stack up to be correct, could we just use a 60e stepped applied plate and ditch the 700r4 plate with a 60e stack up? Would this make the 700r4 actually a better 3-4 clutch?

Im all ears for any info! Plan on doing this at the shop tomorrow. Getting ready for install Friday. Any info ASAP is appreciated. Thanks guys!

 

I set these up like a 60E.

Theres a guy on here that sells a high capacity 60e 3-4 set up that uses the thin 700 apply plates and it's garbage. With those plates you get burn marks at each apply finger.

Use the 60e stuff.

 

Set if up just like a 60e.
Use the #7 apply finger ring
Also upgrade to molded pistons.

 

Ok cool!

Now was i correct about the 700r4 having a thicker steel, after the apply plate before the first friction?4l60e starts with a friction thin steel? Just wanna verifie for later a date.

We ended up using the original 700r4 pistons with the lip seals. They are some what a pain to stack in the drum. Seemed easier to assemble on bench thin install in drum all at once. The molded piston design does assemble eaiser and looks overall better! Lesson learned!

 

I use the aluminum pistons in all of my 700R4 builds. There is no reason to use the molded rubber pistons in a 700R4, as there is no "computer spiking" as could happen in the 1993 - 1999 4L60E's. From what I know this problem was solved in late 1999 units. This caused excessive line pressure and could result in a cracked/broken forward aluminum piston. This never happens in the 700R4. Why spend 25+ dollars for a so-called upgrade that is not needed on 700R4's. This was GM's way of not solving a problem, just masking it.

 

ok. Good to know!