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'81 Cherokee resto mod

Posted: Sun Nov 24, 2019 6:09 pm
by dkerr79
This is my '81 Cherokee. I picked it up in January and have been patching it up since. One of the previous owners pulled the I6 and dropped in a sbc 350 and a TF727. It's had plenty of issues and I've done a lot to stop the bleeding (new 4 inch springs, tires, diff breathers, tranny adjustments, tranny cooler, new ignition, air intake,reverse lights, interior carpet, door panels and hardware, body work and paint among other things). For some reason it tends to overheat on the highway. I'm in the process of replacing the entire cooling system.
It seems that the AC/heat works but doesn't blow through the vents. I'm afraid the duct work is clogged. If anyone has any advice on how to fix it without gutting the system please let me know.

Re: '81 Cherokee resto mod

Posted: Fri Dec 27, 2019 8:13 pm
by twisted frame
Those door panels look really good. I like the aftermarket gauge cluster too.

As for overheating, does it have a fan shroud? That will help cooling.

If the blower motor works for the heat and A/C, there could be junk clogging the vents up near the windshield, or, as in my case, one of my heater duct hoses under the dash had a big tear in it which allowed most of the warm air to escape before helping my defogger/defroster do its work. Look behind the glove box and see if that tubular flexi-hose to the vents is intact.

Re: '81 Cherokee resto mod

Posted: Fri Feb 14, 2020 6:07 pm
by dkerr79
Thanks for the tips. I'm glad you like the door panels. I've been getting most of my interior parts from fullsizejeepparts.com and BJ's Offroad. They both have a lot of good stuff at decent prices.
Turns out when one of the previous owners swapped out the I6 with the sbc, they didn't upgrade the radiator. After some cutting and welding, and dropping in the proper radiator--along with an automatic electric fan--it's running cool.
I'm still trying to figure out the AC/heat. I cleaned the blower motor housing and the heater core box as best I could with no luck.
I may just end up taking it to a shop and have the whole system replaced.
I'm hoping to drop in a 700R4 and a new transfer case that's not full time four wheel drive.
As always, any advice or resources are appreciated.

Re: '81 Cherokee resto mod

Posted: Fri Feb 14, 2020 7:57 pm
by pyro
Did you swap out the muscle grille for the razor?

Re: '81 Cherokee resto mod

Posted: Thu Apr 16, 2020 2:52 pm
by dkerr79
I did. I had a '78 years ago and the razor has to be my favorite grill.
Sorry for the late reply. I had the Vid for a few weeks.

Re: '81 Cherokee resto mod

Posted: Thu Apr 16, 2020 7:27 pm
by will e
I missed this when you posted originally. I really like that truck!

I would be surprised if it is a TF727. Probably a th350.

Re: '81 Cherokee resto mod

Posted: Fri May 22, 2020 3:05 pm
by dkerr79
Turns out the cooling issue had to do with the previous owner's swaps and mods. They took out the original 6 cylinder and dropped in a 350, but didn't change the radiator. After replacing every part in the system I finally swapped out the radiator and I have to drive it hard to get 200*.
The tranny is definitely a 727. I'm planning to swap it out with a 700r4. I gotta have an overdrive.
If anybody is interested in a trade let me know.