CamaroIROC88350

iTrader: (1)

I've been looking around for awhile into getting a better rear end for my ride. My project is taking a deeper turn as the weather gets colder and I have more money to spend. My power goals are modest & I want my rear end to handle the upgrade in power. I was thinking instead of buying a rear end for my Camaro I could just take the rear end out of my Jeep & modify what needs to be modified & have it installed for my ride. If I do this I would have a shop do the swap and install a newer rear end into my Jeep anyways. I'm doing an upgrade on my braking system on my IROC and it's going to require some heavy duty performance stuff. Hopefully this winter most of this can be knocked out. Anywho, here are the Specs on my Jeep:

3:73 Dana 10 bolt open differential disc to disc.

My Jeep Grand Cherokee has both 2wd and 4wd. Does that effect a transfer in anyway?

I am making my own educated guess work on this based on the information I know about rear ends so far. I really think the 3:73 would go well with what I'm doing for my car. I'll have plenty of time to get this right so I'm looking for some good answers on here. I hope to hear back from you guys. Thanks!

Dante93GTZ

iTrader: (5)

Seems like a lot of work for an open diff when 4thgen rears are so plentiful and will have bigger brakes. A Dana, but still....

CamaroIROC88350

iTrader: (1)

I hear you but I've also seen the prices on those 4th Gen. rear ends too. Astronomical. I don't really feel like paying alot of money for a USED rear end when I have a great rear end I can steal from my Jeep. I don't mind putting a new rear end into my Jeep and paying $$$$ for it because I'm going to beef it up to off-road it. Dana's are great rear end's and it's been good for my Jeep. Come to think of it, the standard was a 3:55 but for some reason the original owners ordered it with the 3:73.

big gear head

Which Dana rear end is in the Jeep. If it's the Dana 36 then it's just as weak as the 7.5 10 bolt that you have now. Using a rear end from anything other than a 3rd or 4th gen F body requires major fabrication work and skill, so it's usually not something for the average person. The amount of work needed to do this usually makes it more trouble than it's worth. The smarter thing to do in most cases is to buy an after market bolt in rear end from Moser, Strange or one of the other companies that make rear ends for these cars.

JamesC

iTrader: (5)

I often see them in the two to four hundred range--which seems cheap enough compared to the after market, which can be $2000+.

JamesC

CamaroIROC88350

iTrader: (1)

The going prices in my area for a 4th Gen. 10 bolt is too much for my pocketbook since I don't have the luxury of being wealthy or being a kid living at home with his parents. This has been on the back burner for along time, with bills and all coming first. But the prices around here are about $400-$550 for a 10 bolt used rear end. Plus I don't know if there is anything wrong with someone's rear end and if I spend that much money and find out later that it's junk, well, I'll be real mad.

CamaroIROC88350

iTrader: (1)

My Camaro doesn't have a 10 bolt rear end. It has a 9 bolt rear end from Borg Warner. 9 bolt 2:77 rear end to be specific.

//<86TA>\\

iTrader: (14)

the 9 bolts are a bit tougher than the 10 bolts, though parts are harder to find. Unless you are beating the car pretty hard at the drag strip with slicks/drag radials and high horsepower, the 9 bolt will last a good long time.

as for the jeep rear, forget the idea, its far from practical. even if by some coincidence its the correct width to fit in the car, you would have to swap all the mounting brackets from your rear to the jeep one, requires knowledge and good welding experience, then youi have to figure out the torque arm mount. thats the killer, and will easily cost you more than the 500 dollar 4th gen rears to have done by a fab shop. then you would have to deal with the different bolt pattern for the wheels.

I wouldnt worry about upgrading the rear, other than maybe brakes and gears, until power becomes an issue or you break the rear. Besides, there are other parts that need attention too, shocks struts, tires, brakes, steering parts, suspension components ect.

CamaroIROC88350

iTrader: (1)

This winter there will be substantial changes in my car. I will have to swap the rear end (although I want a 9 bolt 3rd Gen. rear end, I may end up getting a 10 bolt 4th Gen. rear end) to handle the increased power. I have a friend who knows all about rear ends and can do it for me, but maybe I will just forget about my Jeep's rear end and just look for another 9 bolt. I want a 3:27 to a 3:73 posi, so I'll be looking for more.

I can't wait to swap out my TPI intake, old aftermarket roller rockers, heads, cam and all of that good stuff. By the start of next spring I'm hoping my car is at around 400rwhp and 400 ft. of torque. That's not the end of my power gain upgrade but that's what I'm hoping for based on weather, time, money & labor costs. What do you think it'll cost me to have someone swap out my intake with the HSR and install long tube headers? This includes changing the distributor, cap & rotor as well. Labor costs for doing this along with putting in a different rear end?

JamesC

iTrader: (5)

The fourthgen 10-bolt isn't any stronger than a thirdgen 10-bolt with 28 spline axles. For general info about 10-bolt rears, check the following link:

https://www.thirdgen.org/forums/tran...-10-bolts.html

Info about 9-bolts (and their gear ratios, to include 3.70's):

https://www.thirdgen.org/forums/faq-...now-about.html

JamesC

CamaroIROC88350

iTrader: (1)

Thanks for the links but I read those months ago. It should be possible to take the innards from another 9 bolt and put them into my 9 bolt, correct? If yes then that's what I'll do.

Edit: I see that I'll have to get the 3 series carrier since I have the ridiculous 2:77 L.S. That's fine. In that case let's say I buy the 3 series carrier 3:70 posi, do I need to buy just the innards and put those into my 9 bolt?