a full install kit is like 150 bucks and some of those parts are one use only. (crush sleeves and such)

 

I'm not sure what's included in the kit, but I was quoted $500 for a gear install. That included all the necessary parts they would need fluid, shim, new bearings/bushings or whatever. I thought that seemed high from what I read on here, but since I didn't have to buy an install kit, it seemed like a good deal to me. Plus you can't beat a dealer warranty for an upgrade part.

 

i was quoted $300 for install,

5 speed 4.30s, autos 4.10s

 

was the gear install price of 500 bucks include the gears themselves? if so i would say go for it and ask for a warranty for whine or howl

 

just priced a shop near me today!! $360 labor+$120 bearing install kit+$50 for the gear lube. i already have the ring and pinion gear set. he said would be extra for calibration of speedo also!!! seems alittle high!! he said he has done many with no issues!!!!

 

What's the deal with this breakin period? How is that even needed?

Think about it. Does Ford take your car and roll it off the assembly line then drive it around for 500 miles carefully breaking it in with heat cycling? Ofcourse not. So why then, are the differentials just fine in the cars you buy right off the lot? Half those things have been rodded around on test drives already for that matter. Very few customers heat cycle and baby the car like that right after buying it.

 

The $500 was for the install kit, and the labor. That also included recalibrating the car with the new gearing for the speedo. The only thing I supplied was the actual FRPP 4.10 ring and pinion gear. Also the ford racing girdle cover which they installed at no charge. Which btw the rear girdle looks so nice the only time I get to admire it is while washing the car, that's a shame

 

Don't be a cheapskate, have a pro do the change. You can bake the rear end in about 5 miles if you don't do it right.

 

yes 500 is nomal for install, you can get it done for less but dont mess around with a sop you dont know. do one with a written warranty for whine and howl. also yes the factory does not heat cycle or flush but rears go all the time from factory. my dads jeep has gone through 2 rear and 1 front diff in 35000 Kilometers. first was at 15000 so yes just because it hasent been properly cycled doesnt mean it will die it just means it wont be as hard. The gears you want and paid extra to have installed you want to do everything to make sure they last. its cheap insurance to harden your gears.

 

I had the FRPP's installed for $500. Price included gears and labor.