Hey guys, i recently got my car bac on the road after rebuilding the motor, and having the trans rebuilt. however after 115 miles im having trans issues. It is under warranty but i just wondered if anyone had any input on this, transmissions arent my strong suit. for the first 100 miles everything was good, the trasn was rebuilt, zzp shift kit, new clutches, new torque conv., etc. filled it with royal purple max atf trans fluid, and yesterday on the way home i noticed that i had lost power, engine kept revving but my speed kept dropping so i rolled it into a parking lot, i had no reverse, and no forward gears at all. shut it off let it sit for about 30 mins, restarted it and i had reverse, and all forward gears were fine, drove it another 3 miles to my house and as i pulled in the subdivision same thing, no gears again. checked the fluid, and looks like mud. Ive heard the trans cooler can break and mix with the antifreeze but im not entirely sure if it would cause something like this. any input would be appreciated. thanks everyone