LJ? Isn't that the 4 door Wrangler? Wouldn't THAT be the towing vehicle?
If your vehicle can be flat towed, (check and DOUBLE check your owner's manual) you may need to have one custom made. Another suggestion would be to see what parts are "swappable" with a TJ or JK. Maybe the frame width dimensions are the same. CJ owners lie to parts countermen all the time to get the right part.
I'd rather be lost on the trails than found at home!
Long wheel base TJ: (not mine, pulled the pic from militaryjeepers.com)
'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.
The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
<------------and yes, that is her. :-D