Wont be a top loader, will be a single rail, you can buy a new bush for the single rail
https://www.ebay.com.au/itm/25617008...Bk9SR9K20Z7WYw
Top loader
Single rail
Could be a T5?, if so you can buy shifters off eBay for them pretty cheap
https://www.ebay.com.au/itm/19617633...Bk9SR5Tz6p7WYw