Chassis looks pretty identical to me. Front and rear shock towers look pretty close, as do the arms. Not sure what the tranny's are like as I haven't owned an E-FS. I'm not saying they're exactly the same but they are pretty damn close.

you put any weight in the front of the t4? so far i have .25 oz on the triangles in the rear

no weight needed anywhere on the t4 except by reciever to offset the esc weight.

if your running very light lipos you may want to add some to the center of chassis. I went form running the orion 3800's(which are very light) to the newer 5400's(alot heavier).

picked up the new rear hubs tonight so i know have a full ft t4.1. ran pretty good and i actually ha.d a chance to do some testing. Anyone have a good baseline for running stock on clay. I used the Cactus set up from Rc10.com but i have to think that might not translate that well to stock

you know what I meant.

Anybody have any input on the new suspension geometry? I havent raced in about 3 years and slowly getting back in. Is the new geometry related at all to the new weight offset/distribution? Gotta say I like the improved hubs, might have to grab some.

Also, for those that have or have driven both 4 and 4.1, any noticeable improvement on handling? From both truck an buggy.

The truck has no geometry changes, just different setups and new plastic all around. The B4 just has a new rear tower with the "4th" hole and new plastic as well. I raced my old b4 last week (which had everything 4.1 except the chassis and shocks) using the new 4.1 setup and it was dialed, still lots of steering and easier to drive than ever.

Did u get all the new 4.1 plastic on it as well? The newer chassis are super flexy.

The B4.1 is a whole different beast, i never did any good with the old b4 but the new ones first night out it got tq and took 3rd in the final so i would say the car is alot better.

The rear shock tower 3rd hole is the 4th on the old b4 its very smooth and the diff is easy to build

Actually i didnt think the chassis was new plastic so i guess i am back to the 4.0875!

Yeah the chassis and every plastic peice is different. The newer arms are super flexy too.

If anyone is looking for 4.1 stuff for the T4, I am selling my FT SC10 check it out in the classifieds.

is the new gear diff a direct drop in for the ball diff in the t4's

No, you need the new tranny case, rear chassis plate, and 2 10x16mm bearings.

Woke up too early this morning and now I'm patiently (trying at least) waiting for my lhs to open, and crossing my fingers they have one on the shelf. if so, plenty of pix and comments will be shared.