TripleJay22

i lost the rear end today, tore apart the boot on one side of the differential and on the passenger side, the axle has distanced out from the differential about 1.5in and has a fracture down the middle of it.

so if anybody has a rear end for sale or knows where i can get one that would be a great help and anybody who does rear ends because i would have no clue with rear ends.. thanks

jenkin

iTrader: (2)

Is the third member toast, or just the axle shaft? Are you running a sbc? Is the rear end a na or TII? The easiest fix is to just bolt in a new rear subframe and running gear, IMO.
I have both na and TII subffames available, but need to know what you want/need to replace. Post up some pics if possible.

endneu913

iTrader: (5)

Tooshort88 has a rear end subframe assembly in his back yard in puyallup...

1Seven4Me

iTrader: (1)

there's no difference in the subframes as far as I know. T2 vs N/A. S5 subframes are a little beefier. The only real differences are the t2 diff(8" ring gear) & halfshafts are slightly beefier..... and they don't interchange with NA parts.

if you have an NA diff now & are in there to fix it.... might as well upgrade to the T2. you'll also need a different flange yoke on the driveshaft, the bolt pattern is larger.

TripleJay22

yes im running a sbc its an lt1 from a 96 camaro z28 but its a TII rear end, but now im just debating wether its worth fixing or slapping a ford 9in in there and be done with this, or do you think the TII can handle the torque of the sbc? and i just need the axles as far as i know but im not totally sure.

1Seven4Me

iTrader: (1)

if it's just an axle, then yes it is worth fixing. the T2 diff will hold up until you're making some serious power/torque..... until you're laying down 60 ft times in the 1.40 range( translates to high 9's in the 1/4). occasionally even T2 diffs get chewed up (it's mechanical, things can go wrong), but for the most part they are fine for most V8 guys. if it is the diff, staying T2 is still far less costly. on a side note, S4 t2 diffs are a clutch type limited slip and are better(stronger) than the S5 viscus ones for this application.

there is another solution one of the V-8 guys has found for axles too.... it looks promising so far. when my brother breaks his NA diff, he'll be going T2, likely with those axles.
http://www.v8rx7forum.com/v8-rx7-tec...ar-owners.html

notveryhappyjack

iTrader: (4)

Might as well throw the ford 9in in there, you already have the heavy engine to go with the heavy rear end. How much torque does a LT1 make ? maybe 300.

1Seven4Me

iTrader: (1)

sounds like you're attempting to pick a fight......

notveryhappyjack

iTrader: (4)

No, If you already got the heavy duty manly man's engine why stop there. I have fully shredded a rx7 differential, disappointed I thought about going with a ford 9in rear end as a replacement, I would hopefully not ever come across another broken diff. Then I thought about all the extra weight and how it would be like having two fat chicks with you at all times in the back, I don't wanna be known for having two fat chicks with me in the back.... Then the even higher % drivetrain loss associated with this swap came into my head....Then I started thinking about how adversely the heavier rear end would make my car handle, like a Japanese ford mustang (eww) And after that I remembered that my car will never be set up for drag racing but rather driving on the street and you don't need such an over the top solution for street driving. I like my 60mph highway rolls. The ford 9in idea lasted about 30 seconds.

TripleJay22

that is true with the extra weight but i think im going to try out the TII again and give it one more shot but does anyone know the power/torque it can handle? im running 302whp and 317ft lbs of torque.

Ogre

Geez! Right when you think your free and clear the shinanigans are afoot here too. Why cant we all just get along?

1Seven4Me

iTrader: (1)

the S4 T2 diff is good to about 450-500 hp/torque.

as for weight.... what is really affected when swapping a live axle in is handling and unsprung mass. when swapping rears one must account for everything.... it's not just the diff; it's also the halfshafts , control arms, linkages, hubs, subframe... etc.... it all gets changed. i'd be willing to bet a 8.8" ford live axle swap doesn't gain all that much weight, when all is accounted for.

the more popular swap is now becoming the ford 8.8" and there are some doing it IRS using the stock suspension, and gaining a few pounds of sprung mass. cost for either IRS or live axle (if done right) is about $2500 and up.

TripleJay22

well i figured it would be alot but didnt plan on $2500+ but so back to the main thing i was looking at is TII axle or axles, who has them for sale? how much? where you located? and how can i reach you?

and is there a way to tell if my differential is also bad when torn down?

1Seven4Me

iTrader: (1)

there's a possibility that a stub shaft broke too. it's one of the weak links, but it's also one of the less costly parts.
wheel hop under hard acceleration is the usual cause.

not sure on how to test the limited slip, most are in good shape. if you have it opened up, look for metal bits & pieces of what could be clutches...

While it's out be sure to put a pinion snubber in, if it doesn't already have one. that'll help the front diff mount last longer.

Upgrayedd

iTrader: (1)

Hey if you're looking for T2 diff and axles there is a guy in the For Sale sections looking for T2 swap parts and a couple guys mentioned they have that stuff. Go get em. He's more interested in their motors than their drivetrain

TripleJay22

well i got a diff and rear axles from a guy who had them on cl in seatac but now my problem is that the bolts going to the drive shaft dont want to match up so i have to find a drive shaft that has the right bolt pattern to put into my diff

1Seven4Me

iTrader: (1)

new bolt pattern is slightly larger?

if so, that means you didn't have a T2 diff, you had an NA diff.

grannys speed shop sells the flange yoke you need. you may need a conversion U-joint as well(precision 319), but you don't need a new driveshaft.

TripleJay22

well i was going to use the flange off the driveshaft, but now i have a different problem, i got everything in and it drives great, but i took the yolk off the old rear end and put it in the new one and it seems to leak now, what could be causing this? and as far as i know it was a TII rear end