16Sammy61

The 700r4 tranny is 27 spline correct? As opposed to the 4l60e which is 30 right?

12SCNDZ

Late 700s were also 30 spline

16Sammy61

Well my 4l60e is 27 spline...? So what does that make it?

12SCNDZ

I'm going to guess you're counting the wrong splines. You want to count the splines on the input shaft. Not the stator. The input shaft rotates.

Frank

16Sammy61

Alright well another question is, a shop has a 4l60e from a 94 suburban that has been gone through and rebuilt. I can have it for a decent price, but i noticed a difference. I have a large "K" on my bellhousing. From my understanding this is the k case type which is cast to be stronger. The other isnt and has a different setup to mount the cover for the TC and flexplate. Would there be clearance issues with this tranny?

12SCNDZ

The K case theory is a myth. There's nothing stronger about the case. It simply identifies the different converter cover set up. It's possible to cut the "ears" off the other style case to give you clearance.

Frank

16Sammy61

I never knew the K case wasn't real. Thnks for the info, and how would you go about cutting the "ears" off? Would it be safer to just grind them down or take a torch straight to it?

12SCNDZ

We use a pneumatic 90 degree grinder with a cut off wheel. I've seen people have pretty good success with just a hacksaw though.


Frank

16Sammy61

A hacksaw? Haha i never thought of that. I guess you do what you gotta do with what you got. I'll most likely use a grinder thanks for the insight