Here is a quick write up on how to install a transmission cooler on the V6 Automatic transmission. I used a B&M 70255 from jegs.com it cost me 60$ shipped with 2 day shipping. jegs B&M 70255
Materials/tool needed
---------------------------------
24mm socket
10mm socket
12mm socket
Small nut drivers
Alan keys
Pliers
Dikes
Knife or blade
One Quart Toyota WS Transmission fluid
A pump to get the fluid back in the transmission fill plug. This is imposable to do with out
Zip ties
Some 3/4" Self taping metal screws
some trim guard/rubber extra 3/8,1/4" hose
1) Remove the grill and OEM skid plate. Mount the cooler on the driver’s side where the lines are (best way in my .02) I used 3 mounting points. I used like 4 self tapers along the center radiator support and one supplied bracket on the lower portion of the lower radiator support (OEM hole). I feel this is enough. You may see a better way to mount. I painted the screws with some black rustolium paint that I had. It’s brushed on so it might look funny in the picks.
1-a green arrows) Use some trim guard or some rubber hose around the radiator support where the new hoses pass threw so they don’t chafe. This would lead to a leak and that’s bad news :disappoin
2) Begin by Running the supplied hoses. Remove and disguard the bottom OEM line on the radiator this is the return line. The idea is that the radiator will cool the fluid most of the way before you run it threw the B&M cooler.
3) Attach the hose from that bottom line of the radiator to the top of the B&M cooler
4) Attach the left over hose from the bottom of the B&M cooler to the Steel return line under the skid plate area
(looking in from the drivers side of the truck)
Make sure the hoses are not kinked at all. Make nice sweeping turns. Now go back and double check everything and zip tie any hose that needs it.
5) Start up the truck and check for leaks. I let my truck run for 20 minutes and found no leaks. Go for a drive for 10 minutes.
6) Open the transmission overflow plug located on the bottom of the Trans. It’s the one with the Alan key in the center.
MAKE sure you use Toyota WS fluid and not Type-4 IV like I did during my refill. :hammer: Im not sure if this is sold by the quart or not.
7) Crack open the 24mm fill plug on the passenger side of the transmission. Connect your transmission bottle to your pump or hose and start working in the fluid until it comes out of the bottom overflow plug. I pumped in the whole quart and it just started dripping out at the very end of the bottle. I guess I lost near one quart of fluid during the whole process. I rerouted the hosed a few times during my install until I got things the way I liked.
8) Install the 24mm plug and overflow Allan plug and your done reinstall the skid and grill and your done.
Materials/tool needed
---------------------------------
24mm socket
10mm socket
12mm socket
Small nut drivers
Alan keys
Pliers
Dikes
Knife or blade
One Quart Toyota WS Transmission fluid
A pump to get the fluid back in the transmission fill plug. This is imposable to do with out
Zip ties
Some 3/4" Self taping metal screws
some trim guard/rubber extra 3/8,1/4" hose
1) Remove the grill and OEM skid plate. Mount the cooler on the driver’s side where the lines are (best way in my .02) I used 3 mounting points. I used like 4 self tapers along the center radiator support and one supplied bracket on the lower portion of the lower radiator support (OEM hole). I feel this is enough. You may see a better way to mount. I painted the screws with some black rustolium paint that I had. It’s brushed on so it might look funny in the picks.


1-a green arrows) Use some trim guard or some rubber hose around the radiator support where the new hoses pass threw so they don’t chafe. This would lead to a leak and that’s bad news :disappoin


2) Begin by Running the supplied hoses. Remove and disguard the bottom OEM line on the radiator this is the return line. The idea is that the radiator will cool the fluid most of the way before you run it threw the B&M cooler.
3) Attach the hose from that bottom line of the radiator to the top of the B&M cooler
4) Attach the left over hose from the bottom of the B&M cooler to the Steel return line under the skid plate area
(looking in from the drivers side of the truck)

Make sure the hoses are not kinked at all. Make nice sweeping turns. Now go back and double check everything and zip tie any hose that needs it.
5) Start up the truck and check for leaks. I let my truck run for 20 minutes and found no leaks. Go for a drive for 10 minutes.
6) Open the transmission overflow plug located on the bottom of the Trans. It’s the one with the Alan key in the center.

MAKE sure you use Toyota WS fluid and not Type-4 IV like I did during my refill. :hammer: Im not sure if this is sold by the quart or not.

7) Crack open the 24mm fill plug on the passenger side of the transmission. Connect your transmission bottle to your pump or hose and start working in the fluid until it comes out of the bottom overflow plug. I pumped in the whole quart and it just started dripping out at the very end of the bottle. I guess I lost near one quart of fluid during the whole process. I rerouted the hosed a few times during my install until I got things the way I liked.
8) Install the 24mm plug and overflow Allan plug and your done reinstall the skid and grill and your done.