Gurus tried their best to make society caste mukt but they failed in their endeavour, caste is a reality in our part of world. Reality is powerful caste groups converted to Sikhism not for any spiritual reason but to exploit the sense of unity and separate identity it provides for political gains. Jat is a Sikh not for spiritual reasons but for political reasons. Intercaste marriages doesn't end caste identity in Punjab, Punjab has fair amount of intercaste marriages but caste identity still exists because it originates from Paternal Ancestory/Gotra. In Haryana caste structure is more rigid like Childrens born to a Jat father and non Jat mother are not considered Jat, but in Punjab Children born to a Jat father and non Jat mother are accepted as Jat, this is the reason Sikh Jats kidnapped a lot of Muslim girls during Partition but you will not find such cases in Haryana because Children born to a Muslim woman is outcaste among Haryanvi Deshwali Hindu Jats but Children born to a Muslim woman and Jat man are accepted as Jatt among Punjabi Jats. There are cultural differences between Haryana Jats and Punjabi Jats.