Not sure about those "torsion bars" on a Sherman, but my guess about the track is they could be using an engineering plastic like Tamiya used on its Mk IV WWI tank so they aren't as breakable as styrene. Time will tell...
Which "Torsion Bars" are you referring to..? ON a Sherman..? There WAS however, at least ONE M4A2 which was tested with a six-Double-Road Wheel (per side) Torsion-Bar Suspension, using wider 24-inch Tracks, Sprockets and Rear Idlers. The HVSS-type Suspension was adopted, instead...
The link to the poster has "workable track" and "workable torsion bars" written on it! Of course, the actual subject M4A3 VVSS doesn't have any torsion bars, but as stated by others it may be a mis-translation for the bogie arms and springs...
About 20 years ago when AFV-Club did their VVSS suspension set it was advertised as having working torsion bars which referred to the bogie arms.
As for the high strength workable tracks? That probably refers to a snap together track that doesn't pop apart when you look at it cross eyed. A lot of times with transliteration in addition to translation it's not the actual words as opposed to the intended meaning that counts.
Meng is doing a first production M4A3 76mm which just like first M4A1 and M4A2 76mm could have had the straight arms. The first ones were produced along side 75mm tanks not instead of, the M4A1 line was totally switched over very soon. There's a whole lot of mix and match in Sherman minutiae and the watch word is "Never, say NEVER" You'll proclaim it didn't exist and up will pop a photo of it or worse yet an existing example.
Just like I found an example of a remanufactured M4A1 in NW Europe with the original top return roller bogies. It shouldn't exist. Applique armor and a M34A1 mantle and original bogies. But... but... There's another shot of a tank with a mix of the top return roller and trailing return roller bogies.
And road wheels were always mixed. I've seen one Sherman with a mixture of open spoke, solid spoke and solid dished road wheels. Another reason I like Academy kits. They give all three types in many of their Sherman kits so you can mix and match.
A LOT has been, and still IS lost in translation and transliteration, which has caused all kinds of "messes" through the ages...
As to photos, and THIS may be of interest to all our fellow Sherman-fans; if ANYONE out there has the older SQUADRON "In Action #2016 book, "SHERMAN in action", by Bruce Culver, check out the full-page photo on page 3. If I may quote the caption on page 2,
"Vehicles of the 752nd Tank Battallion, attached to the Fifth Army, wait in the Plaza Emanuel, Bologna, Italy near the end of the war. Even at this late date, 21 April, 1945, there is an ancient early production M4 [4th from the right, front row] still retaining its direct vision slots in the glacis plate. Note the variety of vehicles, including M5A1 light tanks and M18 tank destroyers, and the difference in crew stowage and fitting details."
In addition, I would like to say that all of the M4-series types in this photo seem to have the welded hulls, i.e, no cast-hull M4A1s, and there also seems to be a pleasant mix of 75mm and 76mm-type tanks in the mix! They ALSO seem to be sporting a variety of US National Markings, to boot!
I do so WISH that this photo had been taken in color film, (maybe it was, but the author and publisher only had a black & white image to work with?), if only to prove to the "Panzer-Clique" that ALL Shermans WERE NOT painted in TAMIYA XF-62 Olive Drab...
What Steve mentioned about the extra suspension and wheel parts in the 1/35 ACADEMY kits is true; some of the older SHANGHAI DRAGON/DML kits also included these parts, but ACADEMY's were/are better-executed. DRAGON AND ACADEMY Shermans, (I'm not going to include ITALERI's) have been pooh-poohed for various reasons in favor of the TASCA/ASUKA kits, which I won't go into now. TAMIYA's E8s and the Israeli types? They're good too, but they have their faults, as well. I like ALL FOUR sets of manufacturers, and now it seems that TWO more manufacturers will be adding grist to the Sherman mill.
"Not enough variety!!!" says the "Panzer-Clique"- Those guys DON'T KNOW WHAT THEY'RE TALKING ABOUT...