![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Aug 2012
Location: enterprise alabama
Posts: 18
|
transmission oil cooler line fitting help please
hello i have a th350 transmission, and i plan on placing steel braided oil cooler lines on it. does anyone know what the thread size of the pressure and return fitting lines at the transmission and the radiator, thanks in advance
|
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jan 2013
Location: Irving,TX
Posts: 122
|
Re: transmission oil cooler line fitting help please
Just had to replace one of mine last night. The male thread on the cooler line was 5/16
|
![]() |
![]() |
![]() |
#3 |
Moderator
![]() Join Date: Jun 2008
Location: Modesto, CA
Posts: 5,775
|
Re: transmission oil cooler line fitting help please
Hi bookummdano and welcome to the forum! I moved your post to the Engine and Drivetrain area. Good luck on your cooler line swap
![]()
__________________
2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn
70 Longhorn CST Build Adding an AM/FM Decal |
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
|
Re: transmission oil cooler line fitting help please
The transmission side is 1/4 inch npt. Normally an adapter is screwed in in order for the standard 5/16's line flare nut to screw in to. Jegs sells a line kit with the fittings to do exactly what your looking for. http://www.jegs.com/i/JEGS/555/60366...FapFMgodkScAVA
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
![]() |
![]() |
![]() |
#5 |
One foot in front of the other
![]() Join Date: Aug 2008
Location: Parrottsville, TN
Posts: 5,440
|
Re: transmission oil cooler line fitting help please
This is what I did on my '66
Jeg's link http://www.jegs.com/i/JEGS/555/60360/10002/-1 The cooler I bought at a swap meet for $30.00. I made a couple of brackets from some angle to mount it under the radiator behind the bumper. I had to buy two more fittings to be able to plumb the cooler. I got those at a local speed shop and were made by Earl's Plumbing. Jegs has them too. 2 of these: http://www.jegs.com/i/Earl%26%23039%...82266/10002/-1 and 2 of these: http://www.jegs.com/i/Earl%26%23039%...00106/10002/-1 The kit has 20 ft of hose and I probably had 4 ft or so left over. I thought about bending lines, but the frustration level is much less this way, I like the look and they lay real nice on the frame in my opionion. |
![]() |
![]() |
![]() |
#6 |
Account Suspended
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
|
Re: transmission oil cooler line fitting help please
If you use the steel braided hose be sure to use high pressure fittings. Hard lines are actually a better choice because of the high pressures on those lines. They will run 80-120 PSI but can reach 175 psi at WOT if you have a modulator on that trans (and unless it is built for racing, you do)! Summit racing has a set of stainless steel hard lines for $40.00 which is really cheap insurance. Lose a fitting or blow a hole in a flex line and your trans is junk in just a few seconds!
Last edited by Fitz; 01-14-2014 at 12:35 AM. |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Sep 2013
Location: USA
Posts: 178
|
Re: transmission oil cooler line fitting help please
I would use plain steel lines, its much cheaper and less problems on the long haul. Anytime you introduce a fitting you are asking for a "possible issue" so why would you spend money for a "possible issue".....
----leave the braided line look to John Force and his buddies------ |
![]() |
![]() |
![]() |
#8 |
*** That's interesting ***
Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 2,772
|
Re: transmission oil cooler line fitting help please
I agree, bend some steel lines for a factory clean look that will last forever.
__________________
Tom ![]() Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others... |
![]() |
![]() |
![]() |
Bookmarks |
|
|