imallstressed

iTrader: (1)

My 03 Sierra Denali has a small trans cooler that the previous owner added. My friend just gave me a Summit sum-g4969. It's an aluminum tube and fin that is 21x10.5 and 1.5 inch thick. Is there a disadvantage to this cooler? I do have a 3200 stall Circle D and other boltons along with a tune on my truck.

chevrolet all the way

iTrader: (24)

no its wont be too big. you can only get to a certain temp before it doesnt help anymore but it wont be too cold or anything like that

1Bear

iTrader: (1)

Due to it being a tube & fin design, I would venture to guess a cooler of those dimensions is probably in the 28K GVW range. There are so many people using the TruCool Max 40K GVW without problems, I doubt that you will have any issues.

skeet

iTrader: (18)

i run 2 coolers lol 140 tops on the tranny no issues

ZR1 DREAMING

iTrader: (28)

You will not experience any negative issues/effects with a large trans cooler.

imallstressed

iTrader: (1)

Thanks for the help guys. I am installing a new trans next week. I was going to put this in at the same time if it was ok, and it looks like I'm going to be.

14psisupra

iTrader: (1)

if the temp is in the 50's or below it might take a bit of driving before your tc will lock up.

WJ MARK

iTrader: (7)

bigger the better when you have a stall IMO.

cwalker2006

iTrader: (11)

i have a trucool max 40k gvw and when its 40 and below and i leave work which is 15 miles away. i get like 4 miles from town before it finally locks. kinda annoying sometimes.

1Bear

iTrader: (1)

I don't know whether you done it or not, but you may be knock a little efficiency off by painting the cooler. It may be just enough so as to let a little more heat into the trans without resorting to adding a bypass.