Fixed the pics. Hint: use the [img] [/img] bracketing code instead of 'URL' and they will show in your post.
According to the
Vintage Trek site, it's an '88. "
...also medium gray with teal blue decals.."
http://www.vintage-trek.com/model_numbers1.htm
As far as the SN, they say this under FOREIGN-BUILT FRAMES AND BIKES AFTER 1982: "
An 8 or 9 character alphanumeric code was used for mid- and low-level frames subcontracted in Taiwan. Most of these bikes were labeled "Made in Taiwan" (although the sticker often is easily removed). This form of serial number appears to have been used during the period 1987 to 93. The number leads with a T (for Trek?) then a numeral, one letter or two, then five (sometimes 4) numerals. Sean Hickey suggested the first numeral is the year of manufacture, and the letter is the month of the year (A - L). This is confirmed by serial numbers that were submitted by other Trek owners. If there are two letters after the year numeral, the first is the month. The second runs from A through at least Y. It might be a way of extending the 5 digit number series by a factor of 26."
http://www.vintage-trek.com/SerialNumbers.htm#late86