Dual transmission coolers?
Senior Member
Joined: Dec 2008
Posts: 564
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From: Aldergrove,BC,Canada
Year: 1989
Model: Wagoneer
Engine: 4.0L I6
Dayum, those are some toasty tranny temps and those are the fluid temps after the fluid has been thru the cooler(s).....sending unit should be mounted in the fluid line exiting the tranny (the hot fluid)......kinda like engine coolant temp is measured where it exits the motor, not where it enters.
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
The only number that matters is the temp where fluid exits the tranny.....temp exiting the cooler(s) doesn't tell ya much. My tranny's burning up but the fluid is nice-n-cool comming out of the cooler(s). LOL
What would be interesting to see is a comparison of tranny temps with stock diameter tires vs taller tires. Bet there would be a raised eyebrow or two.
What would be interesting to see is a comparison of tranny temps with stock diameter tires vs taller tires. Bet there would be a raised eyebrow or two.
Last edited by djb383; Feb 12, 2012 at 09:04 PM.
Senior Member
Joined: Dec 2008
Posts: 564
Likes: 0
From: Aldergrove,BC,Canada
Year: 1989
Model: Wagoneer
Engine: 4.0L I6
here is where my gauge was mounted, Autometer Sportcomp 2 5/8" on a pedestal mount, its actually only held on with 2sided tape on the pedestal and bottom of gauge and a piece against the windshield to prevent vibes, stayed there for 3yrs and never moved until i took it out.
Senior Member
Joined: Nov 2010
Posts: 976
Likes: 5
From: Cloquet, MN
Year: 2000 Ltd.
Model: Cherokee
Engine: 4.0L I6
1. large 11x9x1.5" Dana cooler, OEM quality, same one used by B&M as an engine cooler.
2. Custom bracket designed for a 99 body Cherokee grille, not sure if it will wo.rk on early grille, need to check
3. Uses 2 upper factory bolts, requires drilling for lower only.
4. All -6 (3/8") AN fit fittings and push-loc hose, can also use SS, and special fittings to convert the hard line to AN -6
I have been wanting to add a larger transmission cooler for years. I finale took the time (2 days, hey I'm retired) I go to Baja and lots of 4wheeling, transmission temps have always been a concern...
I think it's the only cooler you would need, there is a 11"x11" I could mount.
I did remove the factory cooler that was mounted. Still runs in the radiator but that can me bypassed too.
let me know what you think?
2. Custom bracket designed for a 99 body Cherokee grille, not sure if it will wo.rk on early grille, need to check
3. Uses 2 upper factory bolts, requires drilling for lower only.
4. All -6 (3/8") AN fit fittings and push-loc hose, can also use SS, and special fittings to convert the hard line to AN -6
I have been wanting to add a larger transmission cooler for years. I finale took the time (2 days, hey I'm retired) I go to Baja and lots of 4wheeling, transmission temps have always been a concern...
I think it's the only cooler you would need, there is a 11"x11" I could mount.
I did remove the factory cooler that was mounted. Still runs in the radiator but that can me bypassed too.
let me know what you think?
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Looks good, it should cool very well. When the tubes are vertical, just make sure fluid flows into the cooler at the bottom and out the top. When the tubes are horizontal, flow can be either way.
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
1st remove the headlight bezels, then the grille from there u just kinda gotta get in there and start fashioning/mounting a bracket(s) for the deminsions of your cooler. Search "tranny cooler" and u'll find lots of pics. The top tranny fluid line on the drivers side of the rad is the tranny fluid return line. That's the line to splice the auxiliary cooler into.
Seasoned Member
Joined: Mar 2010
Posts: 290
Likes: 0
From: steilacoom washington
Year: 1990
Model: Cherokee
Engine: striaght 6 4.0l
i ran two small ones the stock one from my cherokee and then had a buddy with an 88 bronco 2 and used both i wouldnt go more than that . if your worried about heat id put a temp gauge on your tranny and run a small eletric fan too itt maybe run a mock setup and see how it works never hurts to try and could possiable benifit just keeping it cooler .
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