Changing shock shafts

[B4 Sloth]

Am going to change my rear shock shafts on my bx for the longer Ae B4 ones. Do i need to buy one of the shock rebuild kits- part number YS7-2?

Thanks

[Mike Hudson]

you don't have to get a rebuild kit to change the shafts but if you've been running the same seals for a while then yes it would be a good idea.

[Gaz_Stanton]

And drill out the pistons. The Yokomo shaft diameter is 3mm, AE is larger at 1/8".

[B4 Sloth]

Thanks for responses.