Recommendations for a 99 XJ pulling DD in a big city
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CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
CF Veteran




Joined: Aug 2019
Posts: 1,601
Likes: 226
From: East Tennessee
Year: 1996
Model: Cherokee (XJ)
Engine: 242 cui
Thread Starter
CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
The states I've lived in there was not a restriction like that on classic plates... only what was deemed antique or "horseless carriage" vehicles. those were reserved for anything pre-1940 I think....those could only be driven on certain ocassions I believe.
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Joined: Jan 2017
Posts: 3,461
Likes: 433
From: Connecticut
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
IIWY I'd put in a transmission temperature gauge first to see if in fact you need to do anything.
I'm looking at towing soon (good size boat) so I certainly have a concern about this too,
However, it's also pretty cold up here in the winter, and I'm thinking a 6 tube B&M Supercooler might be WAY too much.
I have one reference that says transmissions need to run at 195 degrees. A lot of guys are running around saying their transmissions are running at 100. Can that be good?
Inquiring minds want to know...
I'm looking at towing soon (good size boat) so I certainly have a concern about this too,
However, it's also pretty cold up here in the winter, and I'm thinking a 6 tube B&M Supercooler might be WAY too much.
I have one reference that says transmissions need to run at 195 degrees. A lot of guys are running around saying their transmissions are running at 100. Can that be good?
Inquiring minds want to know...
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 741
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
I once drove a truck that had a torque converter temp gauge and it was redlined at 250*F. When I was driving it, it stayed at 120*F. GMC 5-ton box.
Thread Starter
CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
thanks EZ.... you get that from Summit, NAPA or where?
And most importantly... how well does it work? Where would you rate it... 1 Love it, 2 eh...in the middle, or 3 it's what you have but wish you had a different one... Thanks!
And most importantly... how well does it work? Where would you rate it... 1 Love it, 2 eh...in the middle, or 3 it's what you have but wish you had a different one... Thanks!
Last edited by RocketMouse; Aug 21, 2019 at 10:54 AM.
Thread Starter
CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
IIWY I'd put in a transmission temperature gauge first to see if in fact you need to do anything.
I'm looking at towing soon (good size boat) so I certainly have a concern about this too,
However, it's also pretty cold up here in the winter, and I'm thinking a 6 tube B&M Supercooler might be WAY too much.
I have one reference that says transmissions need to run at 195 degrees. A lot of guys are running around saying their transmissions are running at 100. Can that be good?
Inquiring minds want to know...
I'm looking at towing soon (good size boat) so I certainly have a concern about this too,
However, it's also pretty cold up here in the winter, and I'm thinking a 6 tube B&M Supercooler might be WAY too much.
I have one reference that says transmissions need to run at 195 degrees. A lot of guys are running around saying their transmissions are running at 100. Can that be good?
Inquiring minds want to know...
Thread Starter
CF Veteran


Joined: Nov 2017
Posts: 2,478
Likes: 275
From: Southern Texas (former AZ & Aus)
Year: 1999
Model: Cherokee(XJ)
Engine: I6 4.0L
Any thoughts on Plate type vs. tube type for either the oil and/or trans? Is one type better than the other?
A. Best preferred type for oil cooler
B. Best preferred type for trans cooler
and on the B & M 70264 unit... where does that connect exactly? I thought I would need some sort of an "adaptor" plate/body that fits between the oil adaptor and filter...but checking on places like Summit Racing, the kit doesn't appear to come with one.
A. Best preferred type for oil cooler
B. Best preferred type for trans cooler
and on the B & M 70264 unit... where does that connect exactly? I thought I would need some sort of an "adaptor" plate/body that fits between the oil adaptor and filter...but checking on places like Summit Racing, the kit doesn't appear to come with one.
Last edited by RocketMouse; Aug 21, 2019 at 11:11 AM.
CF Veteran
Joined: Oct 2018
Posts: 1,096
Likes: 166
From: Hunt County Texas
Year: 1995
Model: Cherokee (XJ)
Engine: 4.0L
Plate type supposedly gives better cooling performance for a given footprint. Dunno how accurate that is in "real life". I've always ran the stacked plate for both purposes. I live in East Texas and temp gun readings on the oil pan has never got me wanting to install an oil cooler in my Jeep. The only car I ever really needed it going off of oil temp readings was a supercharged Miata and even then only when I was actually racing it.
My 95 will qualify for "antique plates" next year but Texas puts various restrictions on them. It would be nice though as it turns an annual registration to a 5 year registration for the same cost. I daily drive it on the days I don't ride my motorcycle which due to having to haul around 60-100 lbs of gear between stations means I drive it quite often.
This is straight off the VTR-54 form you have to sign when you apply for antique vehicle plates
My 95 will qualify for "antique plates" next year but Texas puts various restrictions on them. It would be nice though as it turns an annual registration to a 5 year registration for the same cost. I daily drive it on the days I don't ride my motorcycle which due to having to haul around 60-100 lbs of gear between stations means I drive it quite often.
This is straight off the VTR-54 form you have to sign when you apply for antique vehicle plates
I certify I am the owner of the above-described vehicle, and as statutorily required, I also certify the frame, body, and motor are at
least 25 years old; the vehicle is a collector’s item that will be used solely for exhibition, club activities, parades, and other functions of
public interest; it is not a replica or aftermarket vehicle; will not be used for daily transportation except when routine maintenance is
needed; and will not carry advertising.
least 25 years old; the vehicle is a collector’s item that will be used solely for exhibition, club activities, parades, and other functions of
public interest; it is not a replica or aftermarket vehicle; will not be used for daily transportation except when routine maintenance is
needed; and will not carry advertising.
Got it from Amazon.
I've been using B&M products for MANY years. At the time I was inquiring about trans coolers it was a hot topic around here. The B&M was the #1 choice which didn't surprise me. There are others that will work also though. I'm not towing anywhere near as much I use to but when I did I had no issues. I had planned on mounting a temp gauge inside the vehicle but never did.
CF Veteran
Joined: Oct 2018
Posts: 1,096
Likes: 166
From: Hunt County Texas
Year: 1995
Model: Cherokee (XJ)
Engine: 4.0L
This is the trans cooler I used. And used a Hewitt Trans Temp gauge, which I put in on the right side of the gauge cluster. It's been a bit over a hundred here recently with pretty high humidity and the highest trans temps I'm seeing in stop and go traffic in town are 180.
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 741
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
I recently saw a picture of an XJ A/C condenser that had a trans cooler built into the top 6" of it's core. You could tell by looking at it that the top was a tube cooler and the rest of it was a plate cooler for the freon. I believe it came standard with the tow package.


