Rear End Came Apart

[Dennis Saprinsky]

I WAS HEADED TO A FRIENDS HOUSE SATURDAY WHEN MY REAR END STARTING VIBRATING REALLY BAD. BUY THE TIME I GOT A CHANCE TO PULL OVER THE DAMN THINK QUIET PULLING AND LOCKED UP. I LOOKED AT THE REAR END COVER BECAUSE I NOTICED A BUNCH OF FLUID ON THE ROAD AND THE REAR END COVER LOOKED LIKE BIN LADIN PUT SOME C4 IN IT IT JUST BLEW THE GEARS OUT THE BACK ANYONE HAVE A CLUE HOW MUCH ITS GOING TO COST TO REPLACE EVERYTHING BUT MAYBE THE HOUSING AND THE AXLES IF THEY ARE OKAY?

 

[95Lightning2]

I would assume since it actually doesn't move anymore that your ring and pinion are shot ($160 is the cheapest FMS I've seen), new trac-loc (get one used $50 on up), and hopefully that's all that is screwed up so the rest is labor. Of course, I would go with new bearing throughout since its apart and little pieces of metal have been floating around but that comes down to money. You might also need the exciter ring (thinks thats the new) for the speedo to work. I would think labor would be around $200 to $300.

If your really short on cash at the moment and want to just get it running I have a used 3.55 gear set I can donate to the cause.

Good luck, Jeremy

 

[Dennis Saprinsky]

IM HOPING THE SPIDER GEARS IN THE TRAC-LOC WERE WHAT WENT THROUGH THE DIFF COVER ITS AT FORD RIGHT NOW GETTING AN ESTIMATE DONE ON IT. AFTER THEY FIGURE OUT WHAT EXACTLY IS MESSED UP IN IT ILL HAVE TO MAKE UP A PARTS LIST. SOMEBODY WAS SELLING THERE STOCK TRAC-LOC ON THE PARTS FORUM IM HOPING TO GET IT. ITHAS 50K MILES ON IT AND ITS BEEN REBUILT IS 100 BUCKS A FAIR PRICE FOR IT?

 

[MO351]

Hey Dennis, also you can get brand new Fordmotorsport gears from Diversified Products Marketing for $149. They were $159 shipped to my door when I got my 3.73s for my mustang. Had them in just a few days. Comes with new ring/pinion, crush sleeve, and pinion nut. Get yourself a new set of 4.10s from them. They have an ad in Muscle Mustangs & Fast Fords. I"d say around $200 for labor. At least that's what a local speed shop charged me to do the install. It should be roughly around that I"d say.

 

[95Lightning2]

A $100 bucks is fair if your on a budget (about $269 new) but remember your loading your diff with C4 again and more than likely it will let loose again. If you've got the cash get a good aftermarket one (torsen, eaton, just not a auburn non-pro) and you probably never have to take the diff cover off again.

And Dennis, there are a couple of good mustang shops around Atlanta that would be more help than a Ford service department and also do it cheaper. Throw a post on the Corral or Stangnet and I'm sure somebody there can recommend a good shop in your area. I know dugan racing does that stuff but I have never used them (I just watch Shadetree mechanic and try to do it myself ). Mustangs Unlimited should also be able to recommend someone.

Later, Jeremy

 

[Dennis Saprinsky]

ford gave me an estimate today for 2100 dollars. they said everything in the rear end needed to be replaced except one axle.

 

[95Lightning2]

Dennis, tell them thankyou for diagnosising the problem, pay them their $30 for doing it and push your truck out of their bay so the roll back can get it.

The only other thing we didn't mention earlier were the axles. There stock issue for most all Ford F-150 trucks (31 spline) including 6 cylinders. You can go to any juckyard and pick up one or buy one from the aftermarket (stronger) for $200 to $300 (rough guess but close).

If you can't get a shop close to do it give Thomas (the guy we met at the gocart place) a call. I got his number if you need it. He mentioned he was going to start a shop and has a shop and lift at home.

I put gears and rebuilt the rearend in my mustang and it was the first time I had every done anything like that and it only took 3 hours. Do the math, doesn't come to $2100.

 

[MO351]

Dennis, is your dealer on CRACK!!!!!!!!!!!???????????? That's absolutely ridiculous!! They obviously don't want to do the job.

 

[Dennis Saprinsky]

okay guys i got some prices for everything that I need to replace. please let me know if there is anything that I left out. also im taking it to a shop that has been recomemded by someone that has a 10 sec malibu. The guy said this shop does excelent work and that he lets them work on his race car.

eaton posi unit- 349
strange street/strip axles(w/bearings)- 230
master bearing kit- 89
motive performance 4.10 gears- 160
lpw rear end cover- 139.

 

[95Lightning2]

Yeah, what MO351 said!!!!

Dennis, unless you plan on having a 11 sec truck some day, save some money and get some juckyard axles or stock replacements (if it's cheap, don't know) and you really don't need the cover with studs but since your other one is trash it's not much more anyways.

Sounds like you have it covered. Just make sure you don't walk into a wall or something and break an arm or leg (you know your luck)

 

[Dennis Saprinsky]

yeah im planning on an 11 sec truck so im going with everything hi-po. and HAHAHAHAHAHA about the wall. (sarcasm) any ways thanks for your help guys I dont know shiat about rear ends but im learning very quickly.

 

[MO351]

Looks good!

 

[LightningWX]

Just make sure you don't walk into a wall or something and break an arm or leg (you know your luck)

Naw thats me man. I broke something everyother week for two months straight. Just little stuff, last one was a head gasket. Now I figure theres nothing left to break on my truck so I'm gonna break an arm or something to hinder me working on it. I have tons of luck and it's all bad.

 

[Dennis Saprinsky]

damn ford dealerships. they tried to charge me $617 for a ring and pinion. I took a trailer down there yesterday to take my truck to a different shop when I get there the truck is on a lift with the axles taken out of it. I asked the mechanic if he could put the axles in so I can roll my truck on to a car trailer and he told me that the only way that would happen is with new parts. I wasted half a day getting a trailer and a truck to tow it and then get there and find out the only way it could be towed is on a hook another 100 dollars for a towing fee.

 

[95Lightning2]

Ask your insurance company if they cover towing. Mine does (Alfa) and I have never paid for a tow, just need a receipt.

 

[94SVT437]

Dennis,
Factor Ford gears are made by US Gears. Same as Pro 5 gears. The good thing about going with US Gears is that If your shims are still good from your old set up, 9 out of 10 time a set of these gears will line right back up for you. But you still have to do a patteren on them to make sure they are shimed right.
Also If you are looking at a set of cheap gears you are going to get cheap gears. They may wine no mader how good the patteren is. If I were you I would get a good name brand set of gears, Preferably US Gears