Go Back   Blazer Forum - Chevy Blazer Forums > Mechanical & Maintenance > Engine & Transmission
Sign in using an external account
Register Forgot Password?
Search


Welcome to Blazer Forum!
Welcome to Blazer Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Blazer Forum today!


Closed Thread
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-27-2009, 07:42 PM
 
Join Date: Dec 2008
Location:
Posts: 4
quinn1991 is an unknown quantity at this point
Default transmission swap: 4l60e to turbo 350

My 4L60e is slipping moderately bad, so Ive decided to replace it instead of having it rebuilt... again. My initial idea was to swap it out for a manual, but the amount of work and bit of custom fabrication necessary has discouraged me, so I'm just throwing in another automatic. A friend of mine is going to sell me a THM 350 for 100 dollars, everything included, I'm sure that it will bolt up same as the old tranny, however I do have a few technical considerations before I blindly buy it. Mainly, what are the ramifications from putting a non electronically controlled transmissions in a truck that is designed for one, will my torque converter function normally with the new transmission, and is there anything else that could go wrong that I'm not anticipating?

Any help or advice would be greatly appreciated, thanks
__________________
Red 1998 4 door Blazer
2 wheel drive
All terrain tires
Rebuilt transmission
  #2  
Old 09-27-2009, 08:03 PM
swartlkk's Avatar
Administrator
2009 GMC Yukon Denali
My Garage
 
Join Date: May 2005
Location: Waterloo, NY
Posts: 36,946
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Send a message via ICQ to swartlkk Send a message via AIM to swartlkk
Default

There is A LOT of work to go from an electronic automatic to a non-electronic automatic. First, you will have to have the PCM reprogrammed to keep it from complaining about the missing transmission. Hopefully the TH350 has the proper provisions for an electronic speedometer pickup, if not, you will have to get a manual to electronic conversion box. Then you will have to connect the kick down cable. Get a longer driveshaft. After all of that, you may still have bugs to work out.
  #3  
Old 09-27-2009, 08:32 PM
abig84's Avatar
BF Veteran
 
Join Date: Aug 2009
Location: munster indiana
Posts: 2,942
abig84 will become famous soon enoughabig84 will become famous soon enough
Default

crossmember will have to be moved too
  #4  
Old 09-27-2009, 09:28 PM
New Member
 
Join Date: Feb 2008
Posts: 65
fst450 is an unknown quantity at this point
Default

not to mention no overdrive. I did a 5 speed swap was simple. better fuel milage to.
  #5  
Old 09-27-2009, 09:31 PM
 
Join Date: Dec 2008
Location:
Posts: 4
quinn1991 is an unknown quantity at this point
Default

wow. alright, thats for telling me that. looks like im just buying a new 4l60e.
__________________
Red 1998 4 door Blazer
2 wheel drive
All terrain tires
Rebuilt transmission
Old 09-27-2009, 09:31 PM
 
 
 
Closed Thread

Tags
350, 4l60e, 96, blazer, box, chevy, compatibility, conversion, electronic, replace, speed, swap, swapping, transmission, turbo


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors

All times are GMT -5. The time now is 09:17 PM.

Internet Brands, Inc.