'''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Be certain that is is really 3-4 links longer. Used chains "stretch" (a technical misnomer but useful for discussion purposes) and will be slightly longer than a new chain with the same number of links. A "stretch" of 3 or 4 links is not likely but 1 or 2 is possible depending on the age and abuse the old chain had endured. It might be worth the aggravation to count links in the old chain and cut the new chain to match.