So tell us how you do it unless it's a trade secret lol....I did some research and it says the front suspension/engine cradle on most vehicles with unibodies is rather solid but the rear part of them is practically worthless for hooking up. Reminds me of when about 4 winters ago a lady skidded off the road, she was driving a Dodge Grand Caravan van, went off the road at 90 degree angle and ended up high centered in a steep ditch with the a-- end of the van about ten feet from the road. She hiked to my house, I went out and I hooked up a tow strap to the front cradle and tried to pull her loose with my JD, then my GMC. Couldn't even budge it and she called AAA, they sent a one ton Dodge 3500 dually wrecker, he parked in the middle of the road, hooked onto the rear suspension with something and pulled the van out at a 35 degree angle upgrade. I wish I had seen how he hooked onto it.
BTW my Lesabre recently had a Class 2 (3500 lb) hitch installed by me, I cannot help but wonder just how strong that hitch actually is and if it would work for recovery purposes. It is held onto the unibody frame by by two half inch grade 5 bolts and two 3/8 inch grade 5 bolts. Car weighs about 3650 with a full tank.
Haha no secret JD but my only way usually is pulling on a flimsy lower radiator support thru the front fascia or grabbing a lower strut rod on the rear twords the wheel end. Neither will take much abuse and it is another shop expense and time wasting exercise in CYA....