Built transmission

chadc

New member
Joined
Jan 23, 2012
Messages
111
Reaction score
0
Location
Akron, Oh
Is anybody building these 6r140s yet that will hold up? Stock transmission is smoked at 10k miles. Stock truck ******d
 

sootie

Well-known member
Joined
Oct 3, 2012
Messages
11,854
Reaction score
29
midwest diesel and auto. many many trucks 600-750hp range running them daily with no issues. There are even a couple over 1k hp.
 

doo dah

Member
Joined
Jul 30, 2015
Messages
381
Reaction score
0
Location
San Antonio
Midwest has built a lot of them and many are in trucks on this forum so can't go wrong with them. I'll add Suncoast; I have their 750hp kit in mine, came with billet TC and Billet FP. You can feel the lock up too, way more than stock. I rebuilt my transmission not exchange which I think turned out to be more $$$ so Midwest may be a better option from that perspective.
 

gotchadollar

Member
Joined
Jan 1, 2016
Messages
299
Reaction score
0
I Have the suncoast kit as well in my truck and love it. Randys Transmissions did mine.
 

jcain

New member
Joined
Jul 14, 2013
Messages
2,017
Reaction score
0
Midwest trans in mine. Bout 1000hp at the crank if I had to guess
 

Ackerdiesel

Member
Joined
Mar 3, 2013
Messages
78
Reaction score
1
Location
Western Ky
Another vote for Midwest. But for the trans to be smoked in 10k stock just tuned one of two things has happened. You have lackluster trans tuning or relearn procedures. And if that issue isn’t corrected no one can build a trans that will last.


Sent from my iPhone using Tapatalk Pro
 

Latest posts

Top