Guibos - e21/e30 vs e36

[SRC60]

From RealOEM it appears e21 5-speeds and all e30s (318 early & late and 325 e & i) all use the same guibo - p/n 26111225624 shown as LK=78mm/D=110mm. Early e36 325i's (up to 12/94) use guibo p/n 26111227410 and late e36 325i's (after 12/94) use guibo p/n 26111227869 both shown as LK=78mm/D=110mm. Odd thing, both early and late e36 325i's use the same driveshaft.

Anyone know the difference in these 3 guibos? Are the later ones stronger (made out of better materials) or are they thicker/thinner than the e21 guibo normally used in 5-speed conversions?

TIA, Steve

[skipsfcr]

E36 guibos use a larger diameter bolt than 2002/E21/E30.

[Rennesport]

Most likely Shore strength based on highest torque load input.