# Vin Check

**URL:** https://forums.speedlife.net/t/vin-check/129012
**Category:** SON240sx Automotive
**Created:** [October 21, 2009, 8:59pm UTC](https://forums.speedlife.net/t/vin-check/129012 "2009-10-21T20:59:38Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)
#### Post date: [December 7, 2009, 10:58am UTC](https://forums.speedlife.net/t/vin-check/129012/3 "2009-12-07T10:58:36Z")

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> [@Ever wish you could fly?](https://forums.speedlife.net/t/ever-wish-you-could-fly/24484/9):
>
> Hey Guys,
> 
> Does anyone here have the nissan fast program? I need to replace my rear diff and the car is an s13 silvia it came stock with a CA18DE so im not sure if the diff is the same as a k series or not. If you can do a vin check please PM me
> 
> THanks

FAST wont necessarily tell you that info

to my knowledge, CA equipped S13s were open diff… especially a J or a Q.

your best bet is to check it yourself:

jack up the rear of the car

spin one tire. if the other spins in the opposite direction it’s open. if it spins in the same direction it’s a vlsd.

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