In this scene Pony Boy is told that if johnny does make it he will be crippled for life which causes pony boy to go home and the next morning a soc asked pony why he saved the kids in the fire whichcauses pony to realize he doesn't want to be part of this gang life and run away
Later on Two Bit and Pony boy decided to go the hospital but they didn't allow them to go in and one they got out they came across Cherry and she said she's equal to both greasers and socs and that the soc are planning to attack the greasers
At dinner with soda darry and pony soda doesn't let pony fight but darry does
The greasers and socs show up to the fighting location
After the fight that the greasers they figured out that johnny has died.
Not much has happen after the death of Johnny but I could tell that the death of him will really affect Pony because Jonny was the one who helped him when he was in the conflict with the Soc that attacked him and Johnny.