Get thee behind me, Tool Satan!
Yes, they look handy, but how often will you use them, really, if you're honest? I have a set of straight ratchet spanners, but hardly ever use them. And if I had a bolt, so difficult to get at that I needed one of these, I think I'd adapt a normal spanner or socket to get at it. Surely there'll be only one - you don't need a whole set! A Crowfoot socket would do the same job, and I have a hardly ever-used set of those too!
At least, that's what the good angel on my shoulder is saying. Satan on the other side is saying, "Go on, you know you want them!"
This is on a towed car? People worry about heat from the gearbox and spend a lot on heat insulation of the gearbox cover, when there should be almost no heat from that. The heat they are concerned about is from the radiator, and there is none in a towed car.
I'd be most concerned about the gear box. The internals are splash-lubricated, so that if the car is towed with the front elevated, as on a "Spectacle" towing device, the gear box oil flows to the back. The output shaft is driven by the road wheels, and all the gears will continue to mesh, but those to the front may be deprived of oil. This isn't the case, as you are towing with an A-frame, with all four wheels on the ground. All the gears should continue to be lubricated.
Check your gearbox oil level. If full, drain some. Any signs of wear (metal particles) or over heating (darkening, smells diferent to gear oil, 'feels' less viscous)?
We have towed our cars behind our motor home without any problems and have travelled all over the country. For the 2018 Rbbr, we towed my triumph 2000 to near the start (200 miles) then did the rbbr before returning home behind the motor home, didn't have any problems.
This is what the advert says!
Craftsman 914635 7 piece elbow ratcheting wrench set SAE these Craftsman elbow ratcheting wrenches with pivoting joints enable you to work around obstructions and get to those hard to reach nuts and bolts. Once the wrench and fastener is engaged, use a push pull motion to quickly ratchet nuts and bolts. For maximum leverage, use the push button Lock to Lock the joint into one of 13 different positions.
ps go on you know you want a set!