jjbg86

does anyone know what size belt u need to bypass the smog? and are the belts the same on a 87 and a 94?

rmodel65

the fox belt to bypass is 770k6 uses the stock routing minus the smog pump i dont know about the 94-95?

Power Ford

[quote]ORIGINAL: rmodel65

[quote]the fox belt to bypass is 770k6
What does this mean? Is that the size or brand

rmodel65

size

mustangGT89

If you bybass the smog without using an eliminator pulley, the belt will stretch out and it will start rubbing against the other pulley. It doesn't take long after this until it eats itself into. I had a belt short enough to max out the tensioner and it only took it a couple months to start rubbing. Then you start getting piles of rubber on the water pump and everywhere from it before it breaks. I bought an eliminator on ebay for 40 or $50, but you can get one from Fordracing for $80 I think.

rmodel65

ive had mine on for about 6 month and it doesnt rub? now i first tried the 775k6 and it rubbed onits self but the 770k6 didnt not it was kinda tight fit when i fist put it on but no problems

sgt50

Go park outside of the parts store and put the belt on in the parking lot, if it doesn't fit, take it back inside and try another one. Saves a lot of hassle that way.

red85gt

Is the 770 size for a car with or without underdrive pulleys? My smog pump is on it's way out and I don't have pulleys on mine.