If you have a manual, you might get away with it. I'd really not pull more than 1000-1500 lbs all told with any Focus (trailer and load). Also keep in mind when towing a trailer you lose any real capacity in the rear of the car (even the wagon) because the rear suspension will already be laden with the tongue weight of the trailer.
If it's an automatic, I'd suggest against it. The gear ratios were never meant to facilitate pulling loads. Given the spread I recall from the SPI (and it was geared only a bit taller than the Zetec IIRC), You're hitting over 110 KM/H in second gear at WOT. Not much balls there for pulling anything at highway speeds as Ken said.
If it's an automatic, I'd suggest against it. The gear ratios were never meant to facilitate pulling loads. Given the spread I recall from the SPI (and it was geared only a bit taller than the Zetec IIRC), You're hitting over 110 KM/H in second gear at WOT. Not much balls there for pulling anything at highway speeds as Ken said.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.