Back box blown fibrires

Depends on the type of car. If it is a rear wheel drive it could be anything from a wheel bearing to a worn gear in the housing to a U-joint. Is the noise constant or does it come and go?

a noisey belt should be changed not sprayed the spray acts as a lube and wears off

Try checking fuse box to see if it has a blown fuse, you probably got 2 fuse boxes, 1 under dash and 1 under hood compartment, check both boxes for blown fuse, k hope it works, Billy Wyatt

Could be struts/mounts or sway bar links. If you replaced the front struts hopefully they replaced your mounts as well. If the struts were blown they may have damaged the bearings in the mounts.

Only if it is noisey. It would have been advised when the box was out but now it is back together it isn't worth the effort... you'll be fine :o)

if you mean the valve to close off hot water from the cabin, it should be on the heater hoses leading to the firewall. There will be a vacuum line attached to it. If you mean the heater blend door motor swinging back & forth merrily under the dash, then look under the dash for a noisey little white motor/box, with wires going to it, replace either as needed. retest

WELL NOISEY LIFTERS CAUSED BY DIRT TRAPPED INSIDE THE LIFTERS OR NOT DOING OIL CHANGE OIL IS DIRTY.LOW OIL PRESSURE CAUSES LIFTER NOISES.WORN LIFTERS ALSO CAN CAUSE NOISEY LIFTERS.

all transmisions must be removed to remove thrust bearing there is no way around it its a ring bearing around a shaft that goes thru the cluch into the flywheel!

most of the time it is a lifter sticky

being a renault, the n/s drive shaft holds the oil in box, it splits, replace then try oil some times they do thousands of miles others not, 5th gear over hears and braeks teeth off, then very noisey. if getting a box there is a tag on top, silver, near the diff, this has to be matched to other gearbox as so many different boxes.