I don't know if I have a limited slip differential or not, so I was hoping I could put in the additive in either case?2003 Ford Explorer XLT V8 4X4.
No it will not hurt anything, but all you need to do is call your local dealer with your VIN # and the can tell you if it has a limited slip differential or not.
NO! you dont choose a posi with a 4 barrel carb. That became a stupid situation to declare. First, a 4 barrel doesnt advance the horse skill enuf to warrant that. in case you upload a cam, headers, hi-compression pistons and a few different issues, possibly. I actual have a hotrod with a souped up 350 and that i've got an open 9" ford. Its been on the line for six years and its positive. in case you opt for to floor it for all time, you would be able to remorseful correct to the open rear end yet once you develop up without postpone without breaking the tires unfastened, youre positive
look on the rear end of the car and look where the bolts are on the differential then look for the tag that is about 2 1/2 inch's long by 1/2 wide record the numbers and get the vin off the windshield on the drivers side and call your local ford dealer parts store or any transmission shop and they can tell you what it is. If I remember correctly the additive will damage the non posi-trac Diff. will cause friction wear and failure of the pinion bearing and seals and possibly te wheel seals. call to be sure I could be remembering incorrectly.
Additive won't hurt, but withouttraction-loc" (Chevy's haveposi" rears) it's just pointless. Look for the metal tag hanging off one of the bolts at the center of the rear differential. It has codes on a first line. The second stamped line will have your axle ratio and whether it is traction-loc or not. A regular rear will have like3 .55" or3 .73" for a 355 ratio or a 373 . The first3" is usually partially pinned under the bolt that holds the tag on. If you have traction-loc, you will see something like3 L .55" or3 L.73". TheL" in the middle stands for traction-Loc. Following the ratio numbers will be an 8.8, indicating the differential has an 8.8 inch ring gear. There is also a tag on the front differential if the rear is unreadable or missing. It gives much the same information but not traction-loc, which is only indicated and used or rear differentials. The only useful info on the front tag is the ratio, which is a match for the rear.
