Need help identifying car and parts car

[MrCrow]

Good afternoon everyone! I just acquired (will its still in transit anyway) 2 870c/YZ10 but am struggling to identify which year / years they are. I beleive they are 88/89 but cant tell forsure. Can someone here help me identify them? Many thanks

[coxbros1]

That screw kit u got in that pic is the best kit out there...period!

[jwscab]

Yes 88-90 870c, as matches the box. I can't tell if that is one car or two, but the car I see has a full rpm conversion, bulkheads and arms. As well as a top brace installed. A lot of good parts for sure and worthy of running without fear of breaking fragile parts. The rpm stuff might not be the best for true performance but it is tough. (More flexible in some cases).