TH 350 Front Pumps. Difference ? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-22-2012, 03:04 AM
Registered User
 
Join Date: Feb 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
TH 350 Front Pumps. Difference ?

Hi,
I just disassembled a TH350 for spare parts. When I disassembled the front pump I notised that there is a small valve in the housing. Will this pump assembly interchange with the "normal" pump assy.? The trans may have been a TH350 lock up. There is a switch mounted in the right hand side, next to the cooler lines, but the input shaft is not a lock up type. Will all hard parts be useable for parts in non lock up versions?
Thanks, Tom.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-22-2012, 04:24 AM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
All non-lockup pumps interchange. Same with lockup pumps. Major difference between LU and NonLU is length of stator support shaft.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-22-2012, 05:45 AM
joshp83's Avatar
owner of Prices Garage
 
Last photo:
Join Date: Jun 2011
Location: west virginia
Age: 31
Posts: 317
Wiki Edits: 0

Thanks: 0
Thanked 23 Times in 23 Posts
theres some diffrences in non lock up pumps a vega pump is air cooled if u use it it it will vent fluid out of the breather the ball and spring was used in 69 then it was changed
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-22-2012, 10:21 AM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by joshp83
theres some diffrences in non lock up pumps a vega pump is air cooled if u use it it it will vent fluid out of the breather the ball and spring was used in 69 then it was changed
Vegas were not built in 69, so did not have the ball and spring.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-22-2012, 10:35 AM
Registered User
 
Join Date: Feb 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thank You for your answers. The valve I mentioned is x-tra. The ball is there too. This x-tra valve sits in the open when you takas the 2 halves of the pump apart. The valve is about 11 mm diameter with a spring below. you can remove it with your fingers. Thanks, Tom.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-23-2012, 12:31 AM
joshp83's Avatar
owner of Prices Garage
 
Last photo:
Join Date: Jun 2011
Location: west virginia
Age: 31
Posts: 317
Wiki Edits: 0

Thanks: 0
Thanked 23 Times in 23 Posts
no the 69 had the ball and spring the vega wich was introduced in 1971 was air cooled and had a diffrent pump wich cannont be used in a a regular 350
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-23-2012, 10:52 AM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by joshp83
no the 69 had the ball and spring the vega wich was introduced in 1971 was air cooled and had a diffrent pump wich cannont be used in a a regular 350
I have been selling 350 pumps for 30 years and the ONLY question I have ever asked is, "lockup or nonlockup" to determine which type of application. Vega 350 pumps have the same OEM part numbers as any other 350 pump of the same era and work just fine in any other nonlockup application.

The only significant differences amongst nonlockup pumps is the ball and spring for 1969 and the steel sleeve with extra ring for 80 and up. They ALL interchange, though the 80 and up are preferable because they tend to last longer. Because of the longevity of the 80 and up, it is the ONLY one I sell nowadays into ALL nonlockup applications, INCLUDING Vega.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-23-2012, 01:24 PM
rick 427's Avatar
Registered User
 

Last journal entry: The Cheetah
Last photo:
Join Date: Feb 2012
Posts: 258
Wiki Edits: 0

Thanks: 0
Thanked 17 Times in 17 Posts
MMERLINN..Your post indicates that you are selling 80 up pumps for non lock-up 350's...80 up pumps were lock-up pumps.....didn't you mean ''pump bodys''....and not the complete pump??
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-24-2012, 12:25 AM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by rick 427
MMERLINN..Your post indicates that you are selling 80 up pumps for non lock-up 350's...80 up pumps were lock-up pumps.....didn't you mean ''pump bodys''....and not the complete pump??
Minor typo on my part. 80 was last year for nonlockups and first year for lockups. I should not have said "up" just "80" instead of "80 up."

LU pump bodies are different than NonLU pump bodies. The LUs have thicker gears. I have no idea whether one should interchange them or not.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-24-2012, 12:55 AM
rick 427's Avatar
Registered User
 

Last journal entry: The Cheetah
Last photo:
Join Date: Feb 2012
Posts: 258
Wiki Edits: 0

Thanks: 0
Thanked 17 Times in 17 Posts
Yea,I know the pump bodies are different...I thought for a minute that you were maybe selling an aftermarket piece....good used pumps are getting hard to come by in these parts.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-24-2012, 10:08 AM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by rick 427
Yea,I know the pump bodies are different...I thought for a minute that you were maybe selling an aftermarket piece....good used pumps are getting hard to come by in these parts.
I have never seen an aftermarket pump for a 350, though I have seen aftermarket shift kits and conversion kits for some applications. I don't think there is enough demand for anyone to make aftermarket 350 pumps, especially since good used are still generally available relatively cheaply.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-25-2012, 12:27 AM
Registered User
 
Join Date: Feb 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Where do you buy those good used pumps?
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-25-2012, 07:18 PM
Registered User
 
Last wiki edit: Transmission identification
Join Date: Mar 2008
Location: Terra
Posts: 686
Wiki Edits: 85

Thanks: 0
Thanked 23 Times in 21 Posts
Quote:
Originally Posted by stallone
Where do you buy those good used pumps?
Wrecking yards.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
REO pumps Jeff The Ruler Engine 3 10-03-2009 02:40 PM
T-400 front pumps are they interchangeable Overdriv Transmission - Rearend 9 08-07-2009 11:55 AM
oil pumps 101 k-star Engine 26 05-22-2006 10:00 PM
Gas Pumps Kevin45 Hotrodders' Lounge 4 10-05-2002 03:56 PM
oil pumps truckin chuk Engine 4 03-22-2002 04:22 PM


All times are GMT -6. The time now is 02:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.