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Hi Sparro,

1991 US Market 240 has the TRW CAM rack, most likely.

This may help you to identify the rack on your 1991 240.

https://www.reddit.com/r/Volvo240/comments/14ov9m0/1991_240_steering_rack/

However, there is variance with the inner tie rod. The mechanical interface between it and the geared rack and if fitted with a lock washer, red loctite thread locker, or other method. I prefer the hardware locking methods between geared rack end and the inner tie rod. If the geared rack is loose at the bushings, like a check for play, I had locking asher you dimpled with a punch or dimple the tie rod at the receiving thread end.

The end of the rack may be a rolled thread stud or more likely a internal receiving thread.

I forgot to mention in my Folger's instant ramble, that the rack also needs recurring lubrication so it slide through the nylon hard bushings at either end. Inserter enough grease at each end of the rack and work the steering or the geared rack end. The grease gets in to your nitrile gloves at the wrist.

If you have no record of replacement of either side tie rod set, ye4s, reoplace ib pairs. And inspect the boots. The nuts securing the U-bolts that retain the rack to the engine support mener can come loose.

https://www.fcpeuro.com/Volvo-parts/240/Tie-Rods/?year=1991&m=20&e=914&t=5&b=5&d=34&v=11

The inner tie rod from Delphi is for ZF rack. In US, find more ZF on 1970s and more so 1980s 240. The big donuts at the end. CAM rack ends in bellows tapered towards the outer tie rod end - end.
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