The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-20-2019, 09:43 AM   #1
jbgroby
Registered User
 
jbgroby's Avatar
 
Join Date: Nov 2008
Location: Lacombe, LA
Posts: 2,668
What the purpose of a deeper trans pan?

I was wondering if its worth switching to a deeper pan on my 700r4 for my switch?

What does it improve?

Thanks.
jbgroby is offline   Reply With Quote
Old 09-20-2019, 09:47 AM   #2
SunSoaked
Senior Member
 
SunSoaked's Avatar
 
Join Date: Dec 2011
Location: Yuma Arizona
Posts: 1,202
Re: What the purpose of a deeper trans pan?

Fluid capacity. Maybe cooling...maybe. Installing a drain plug is much more rewarding than carrying around 2 extra quarts of fluid.
SunSoaked is offline   Reply With Quote
Old 09-20-2019, 01:20 PM   #3
Stormin08
Registered User
 
Stormin08's Avatar
 
Join Date: Sep 2018
Location: Moss Bluff, LA
Posts: 305
Re: What the purpose of a deeper trans pan?

the additional fluid WILL aid in cooling...you can even look for a pan that better dissipates heat, B&M used to make a standard pan with tubes that ran front to back , it allowed air to evacuate the heat
Stormin08 is offline   Reply With Quote
Old 09-20-2019, 01:57 PM   #4
SunSoaked
Senior Member
 
SunSoaked's Avatar
 
Join Date: Dec 2011
Location: Yuma Arizona
Posts: 1,202
Re: What the purpose of a deeper trans pan?

Only when you're moving and it's marginal at best. Better off installing a trans cooler.
SunSoaked is offline   Reply With Quote
Old 09-20-2019, 04:03 PM   #5
jbgroby
Registered User
 
jbgroby's Avatar
 
Join Date: Nov 2008
Location: Lacombe, LA
Posts: 2,668
Re: What the purpose of a deeper trans pan?

I'm using a trans cooler, no question.
jbgroby is offline   Reply With Quote
Old 09-20-2019, 07:26 PM   #6
Tom
driving is in my blood
 
Tom's Avatar
 
Join Date: Dec 1999
Location: Mesa AZ
Posts: 4,980
Re: What the purpose of a deeper trans pan?

Quote:
Originally Posted by SunSoaked View Post
Only when you're moving and it's marginal at best. Better off installing a trans cooler.
Nobody is debating whats better, the OP is specifically asking about deeper pans.

Yes, they cool better as there is more surface area contacting the fluid. GM has standard and deep pans for the 4L60 from the factory, so there is certainly something to them other then another hyped up product. As for if its worth it, thats up to you. Stock vehicle? Then probably not.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle.
-98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes.
-02 Suburban 4x4: stock
-CBR600F4i, CBR600RR, CBR1000RR, and standup skis
DISCLAIMER: I cant spell for the life of me.
Tom is offline   Reply With Quote
Old 09-23-2019, 09:47 PM   #7
toolboxchev
Registered User
 
Join Date: Jul 2015
Location: 2nd left past the stump on a dirt road.
Posts: 1,877
Re: What the purpose of a deeper trans pan?

I have a trans cooler on a turbo 350, no doubt I have saved that transmission from early destruction with it.

Added a deeper pan with the cooler holes will do nothing but help. I have the pan mentioned above on a turbo 400 core. Saving it!
toolboxchev is offline   Reply With Quote
Old 10-01-2019, 06:02 AM   #8
Madkidd007
Senior Member
 
Madkidd007's Avatar
 
Join Date: Nov 2018
Location: Athens, Ga
Posts: 1,446
Re: What the purpose of a deeper trans pan?

Looks like I may be a little behind on this but a very reputable builder/friend of mine gave me some insight. More fluid capacity isnít an automatic good thing, youíre looking for more cooling capacity. As in stock style or chrome pans youíre increasing the amount of fluid you must cool which takes longer to cool. Now if you run an aluminum pan or one with the cooling tubes youíre increasing the ability to cool the extra fluid. Point is more fluid can be bad if youíre not cooling it more efficiently.
Madkidd007 is offline   Reply With Quote
Old 10-01-2019, 08:02 AM   #9
PGSigns
Senior Member
 
PGSigns's Avatar
 
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,151
Re: What the purpose of a deeper trans pan?

Here is my take on the more fluid from years of drag racing. The enemy is heat. The cooler needs to be capable of getting rid of the heat. We ran large coolers with there own fan and placed them where they were not affected by the heat from the cooling system. You need to have enough fluid to absorb the heat with out gaining temperature to quickly. The more fluid you have slows the temperature rise as the trans builds heat under a load. Thats just physics and why for heavy duty applications we have bigger pans and bigger coolers. A trans temp gauge will tell you if you need more cooling and more ability to get the trans temp under control.
Jimmy
__________________
60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
PGSigns is offline   Reply With Quote
Old 10-01-2019, 11:52 AM   #10
mattfranklin
Senior Member
 
mattfranklin's Avatar
 
Join Date: Dec 2011
Location: Moraga, CA
Posts: 609
Re: What the purpose of a deeper trans pan?

Here's another take in addition to the temperature discussions. Tranny fluid has special additives in it to lubricate, protect, and modify the friction of the clutches. Over time the additives get used up. If you start with more fluid it takes longer to shear down and use up the additives.

And yes, there is some heat transfer and thermal inertia benefit to a deeper pan, but even better to have an inline cooler installed. Or both.
__________________
(Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1

http://67-72chevytrucks.com/vboard/s...d.php?t=567340
mattfranklin is offline   Reply With Quote
Old 10-01-2019, 01:19 PM   #11
Killer Bee
Registered User
 
Killer Bee's Avatar
 
Join Date: Jan 2016
Location: Barber City, CA
Posts: 2,683
Re: What the purpose of a deeper trans pan?

+1 to all the advantages mentioned above, same logic as applied to deep sump oil pans

increased heat rejection and reduced contamination dilution are definitely major advantages in any auto trans..

drain plugs not only aid in fluid service convenience, will increase the likelihood of actually changing it where otherwise more often neglected

only potential disadvantage is reduced ground clearance where that applies but typically not an issue except in severe off road duty applications or extremely deep sumps that protrude beneath chassis structures..

good luck!
__________________
I started out with nothing - and I still have most of it
Killer Bee is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 10:45 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com