Notices
Automatic Transmission 4L60E | 4L80E | TH350 | TH400 | TH2004R | Powerglide | Converters | Shift Kits
Sponsored by:
Sponsored by:

TH350/TH400 Frequently Asked Questions

 
Old 06-12-2013, 08:49 PM
  #21  
Staging Lane
 
cliffdiver86's Avatar
 
Join Date: Nov 2012
Location: Trumbull, Ct
Posts: 75
Likes: 0
Received 0 Likes on 0 Posts
Default

Does anyone make a TH-400 swap kit?
cliffdiver86 is offline  
Old 06-12-2013, 08:52 PM
  #22  
TECH Fanatic
iTrader: (26)
 
Join Date: Mar 2010
Location: Milledgeville, GA
Posts: 1,913
Likes: 0
Received 0 Likes on 0 Posts
Default

No, but Spohn makes a spacer to bolt between the stock T56 crossmember and the transmission mount so a TH400 will bolt up at the right driveline angle.
1961ba427 is offline  
Old 06-12-2013, 09:07 PM
  #23  
Staging Lane
 
cliffdiver86's Avatar
 
Join Date: Nov 2012
Location: Trumbull, Ct
Posts: 75
Likes: 0
Received 0 Likes on 0 Posts
Default

Wishful thinking haha. Thanks ill have to check it out
cliffdiver86 is offline  
Old 06-14-2013, 08:58 AM
  #24  
Back in the staging lane
iTrader: (3)
 
Beeler422's Avatar
 
Join Date: Nov 2001
Location: NE Texas
Posts: 1,422
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by dlove View Post

Cooler lines-

TH400
Fitting Location Thread Size Flow Direction
Upper " Pipe Return/in
Lower " Pipe Cooler feed/out
I'm not sure about the TH350, but the fittings on the TH400 are a 1/4 in.-18 NPSM; not NPT. You can use an NPT but you run the risk of cracking the case. NPT is tapered where NPSM is not.
Beeler422 is offline  
Old 09-09-2013, 12:09 AM
  #25  
On The Tree
iTrader: (6)
 
john.s's Avatar
 
Join Date: Jun 2007
Location: Fort Worth, TX
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Default

Can't seem to really find a straight forward answer anywhere else but what about the throttle kick down on the TH350? Is it necessary?
john.s is offline  
Old 09-09-2013, 10:51 AM
  #26  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by john.s View Post
Can't seem to really find a straight forward answer anywhere else but what about the throttle kick down on the TH350? Is it necessary?
No it's not, your trans just wont down-shift automatically, you'll have to manually pull it down a gear for passing.
93Z2871805 is offline  
Old 09-09-2013, 12:58 PM
  #27  
On The Tree
iTrader: (6)
 
john.s's Avatar
 
Join Date: Jun 2007
Location: Fort Worth, TX
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93Z2871805 View Post
No it's not, your trans just wont down-shift automatically, you'll have to manually pull it down a gear for passing.
Ok thanks
john.s is offline  
Old 12-18-2013, 09:47 AM
  #28  
On The Tree
 
N2Ojunky's Avatar
 
Join Date: Dec 2013
Location: Alabama
Posts: 107
Likes: 0
Received 0 Likes on 0 Posts
Default

I have a 99 Z28 converted from a M6 to a th350 what do I need to get the speedometer and reverse lights working?
N2Ojunky is offline  
Old 01-20-2014, 10:38 AM
  #29  
Launching!
 
Beave's Avatar
 
Join Date: Oct 2006
Location: Louisiana
Posts: 285
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for posting this info. Put a PTC th350 and converter in my car yesterday. Used a UMI crossmember and madman dipstick and everything else went together perfectly. Used the free speedo mod and it works perfect.
Beave is offline  
Old 03-03-2014, 10:22 AM
  #30  
Teching In
 
Join Date: May 2013
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
Default Question

Have 6.0 flex plate turbo 400 what spacer and bolts needed please and thanks gm stuff
1990gtcory is offline  
Old 03-03-2014, 11:31 AM
  #31  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

Spacer - 12563532
Bolts - 19257940
93Z2871805 is offline  
Old 03-03-2014, 08:23 PM
  #32  
TECH Fanatic
iTrader: (26)
 
Join Date: Mar 2010
Location: Milledgeville, GA
Posts: 1,913
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93Z2871805 View Post
Spacer - 12563532
Bolts - 19257940
Kenny, I can't remember whether the spacer goes between the flywheel and crank or between the flywheel and convertor??

I think it's between the flywheel and crank, but wouldn't that cause an issue with flywheel to starter engagement?
1961ba427 is offline  
Old 03-03-2014, 09:59 PM
  #33  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 1961ba427 View Post
Kenny, I can't remember whether the spacer goes between the flywheel and crank or between the flywheel and convertor??

I think it's between the flywheel and crank, but wouldn't that cause an issue with flywheel to starter engagement?
If it's a flat flexplate it goes between the flexplate and the converter, if it's a curved flexplate it goes between the flexplate and the crank.

The spur gear is pretty long (probably 1"), you're spacing it .400" to the rear, so if the OEM spot was towards the front of the gear (which I believe it is), then you'd just be shifting it to the rearmost part of the gear. I had to shim my starter ~ .060" FWIW (I know it's not shimming in the same direction you're talking about, I'm just throwing it out there, lol).
93Z2871805 is offline  
Old 03-04-2014, 06:34 AM
  #34  
TECH Fanatic
iTrader: (26)
 
Join Date: Mar 2010
Location: Milledgeville, GA
Posts: 1,913
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you
1961ba427 is offline  
Old 03-04-2014, 11:43 PM
  #35  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

No prob bud
93Z2871805 is offline  
Old 03-07-2014, 05:06 PM
  #36  
TECH Regular
 
Join Date: Jun 2009
Location: new york
Posts: 448
Likes: 0
Received 0 Likes on 0 Posts
Default

Only dipstick I can find is a td350400fm36 , not a td3350400fm36 like the thread states in the dipstick number . Is the number I found correct ?
93v8clone is offline  
Old 03-07-2014, 08:26 PM
  #37  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93v8clone View Post
Only dipstick I can find is a td350400fm36 , not a td3350400fm36 like the thread states in the dipstick number . Is the number I found correct ?
Yes. It was just a typo, someone hit "3" twice.

You want TD350400FM36 if you don't need a locking type, and 1211144-36 if you need a locking style.
93Z2871805 is offline  
Old 03-09-2014, 08:40 PM
  #38  
Launching!
iTrader: (1)
 
(SS)'s Avatar
 
Join Date: Aug 2009
Location: Louisiana
Posts: 298
Likes: 0
Received 0 Likes on 0 Posts
Default

Great info

I'm just getting started on my first m6 to th350 swap.I may have missed it,but i didn't see any tq converter bolt part number Preferably ARP.Let me know if i'm missing anything.

-Here is my parts list sofar-
ARP 244-2901 - ARP Pro Series Flexplate Bolt Kits
TCI Auto 399753 - TCI Flexplates
B&M 80688 - B&M QuickSilver Shifters
B&M 70274 - B&M SuperCooler Oil Coolers
Madman dipstic

-This is for braided steel lines and fittings-
Russell Performance 640520 - Russell Transmission Cooler Line Fittings
Aeroquip FCA0620 - Aeroquip AQP Stainless Steel Braided Hose
Aeroquip FBM5013 - Aeroquip AN to NPT Adapter Fittings
Aeroquip FBM4422 - Aeroquip Reusable Hose Ends
Aeroquip FBM4412 - Aeroquip Reusable Hose Ends
(SS) is offline  
Old 03-09-2014, 08:57 PM
  #39  
TECH Fanatic
iTrader: (5)
 
93Z2871805's Avatar
 
Join Date: Jun 2008
Posts: 1,543
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by (SS) View Post
Great info

I'm just getting started on my first m6 to th350 swap.I may have missed it,but i didn't see any tq converter bolt part number Preferably ARP.Let me know if i'm missing anything.

-Here is my parts list sofar-
ARP 244-2901 - ARP Pro Series Flexplate Bolt Kits
TCI Auto 399753 - TCI Flexplates
B&M 80688 - B&M QuickSilver Shifters
B&M 70274 - B&M SuperCooler Oil Coolers
Madman dipstic

-This is for braided steel lines and fittings-
Russell Performance 640520 - Russell Transmission Cooler Line Fittings
Aeroquip FCA0620 - Aeroquip AQP Stainless Steel Braided Hose
Aeroquip FBM5013 - Aeroquip AN to NPT Adapter Fittings
Aeroquip FBM4422 - Aeroquip Reusable Hose Ends
Aeroquip FBM4412 - Aeroquip Reusable Hose Ends
Those ARP bolts will not work if you are planning to use a converter that has a standard SBC/BBC pilot as you'll need to use a crank spacer.

EDIT: I see that TCI flexplate comes with a spacer, so the ARP 244-2901 bolts wont work.
93Z2871805 is offline  
Old 03-09-2014, 09:25 PM
  #40  
Launching!
iTrader: (1)
 
(SS)'s Avatar
 
Join Date: Aug 2009
Location: Louisiana
Posts: 298
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 93Z2871805 View Post
Those ARP bolts will not work if you are planning to use a converter that has a standard SBC/BBC pilot as you'll need to use a crank spacer.

EDIT: I see that TCI flexplate comes with a spacer, so the ARP 244-2901 bolts wont work.
What are the correct bolts?
(SS) is offline  

Thread Tools
Search this Thread
Quick Reply: TH350/TH400 Frequently Asked Questions


About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: