What is this part for?

Reduction rings that let you install a smaller 90mm or 95mm bearing transmission onto A340 cut-style adapter plates.

Do I need this if my transmission already matches the plate's bearing size?

No — these rings are only needed when adapting a smaller 90mm/95mm bearing transmission to the A340 cut-style plate; they're not required for 100mm bearing transmissions. They're included with all current adapter kits so you have them on hand for this install or a future one. This listing offers them separately for the older CD009 kits, which didn't originally include them.

A340 JZ to CD JK Spacer Rings | ASE

Regular price: $54.99
Regular price: ~~$59.99~~
Sale price: $54.99
Unit price: per
Availability: Sold out

Reduction rings for installing smaller 95/90mm Bearing Transmission onto the A340 Cut Style Adapter Plates.
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