[Durt_Diver]

i would find an 8.8 with 4.10's and limited slip and just gear the front and lock it. or just an 8.8 with 4.10's and do the super88 kit.


the 8.8 is stronger... but if you wanna go deeper with gears it might just be easier to do the 8.25. they are both c-clip so i'd go with the 8.8

[SFRautomotive]

8.8 is much stronger and has a much larger aftermarket than the 8.25.


Only downside is that it is narrower.

[Back_In_Black]

9''

[Durt_Diver]

DYNATRAC 60's FRONT AND REAR NOW DO IT

[Wearingthin]

Originally Posted by SFRautomotive

8.8 is much stronger and has a much larger aftermarket than the 8.25.


Only downside is that it is narrower.

Is he going to build it up? Or going up in sizes on tires?

The 8.25 should hold up fine stock for what he's got. I think "much stronger" is an overstatement. The aftermarket is no contest in favor of the 8.8, though. Still meh

[2doorxj]

Originally Posted by alexrule123

Well the 8.25 is an easier swap and it's cheaper then the 8.8

8.8 isnt a difficult/expensize swap at all. Plus youll have the added security of having a beefier rear axle. 31 vs 29 spline, 3.25 tubes vs 3, 8.8 inch ring gear vs 8.25, etc.

8.8 can always be built to handle 37s no problem, while the 8.25 doesnt have that option. The aftermarket for the 8.8 is HUGE, the aftermarket for the 8.25, not so much. Just my 2c though.

[DezertXj88]

My issue with the 8.8 vs 8.25 is that you don't see many 8.25 spin tubes. 8.8's do it constantly even when they are welded.

We use the 8.8's in jeep speeds alot, and it happens. I'd stick with the 29spline 8.25, honestly people have beaten the sh*t out of them on 35's without issues!

Now decide if you want anything deeper than 4.56 gear's. If you do then forget the c8.25 as it only goes to 4.56.


And axle shaft strength wise..theres a chart online somewhere, but 8.25 is with 50 ftlbs force to a 30spline D44 shaft, the 8.8 wasn't listed, but no it is not that much stronger at all.

[alexrule123]

Originally Posted by Wearingthin

Is he going to build it up? Or going up in sizes on tires?

The 8.25 should hold up fine stock for what he's got. I think "much stronger" is an overstatement. The aftermarket is no contest in favor of the 8.8, though. Still meh

I will eventually going up to 35x12.50s and locked. (That's the plan anyways)

Originally Posted by 2doorxj

8.8 isnt a difficult/expensize swap at all. Plus youll have the added security of having a beefier rear axle. 31 vs 29 spline, 3.25 tubes vs 3, 8.8 inch ring gear vs 8.25, etc.

8.8 can always be built to handle 37s no problem, while the 8.25 doesnt have that option. The aftermarket for the 8.8 is HUGE, the aftermarket for the 8.25, not so much. Just my 2c though.

I am leaning towards the 8.8 and I am planning on pricing one at the junkyard this weekend.

[alexrule123]

Originally Posted by DezertXj88

My issue with the 8.8 vs 8.25 is that you don't see many 8.25 spin tubes. 8.8's do it constantly even when they are welded.

We use the 8.8's in jeep speeds alot, and it happens. I'd stick with the 29spline 8.25, honestly people have beaten the sh*t out of them on 35's without issues!

Now decide if you want anything deeper than 4.56 gear's. If you do then forget the c8.25 as it only goes to 4.56.


And axle shaft strength wise..theres a chart online somewhere, but 8.25 is with 50 ftlbs force to a 30spline D44 shaft, the 8.8 wasn't listed, but no it is not that much stronger at all.

That's good to know, I plan on getting the tubes welded anyways (hopefully the axle tubes don't spin)

[Wearingthin]

Originally Posted by DezertXj88

My issue with the 8.8 vs 8.25 is that you don't see many 8.25 spin tubes. 8.8's do it constantly even when they are welded.

We use the 8.8's in jeep speeds alot, and it happens. I'd stick with the 29spline 8.25, honestly people have beaten the sh*t out of them on 35's without issues!

Now decide if you want anything deeper than 4.56 gear's. If you do then forget the c8.25 as it only goes to 4.56.


And axle shaft strength wise..theres a chart online somewhere, but 8.25 is with 50 ftlbs force to a 30spline D44 shaft, the 8.8 wasn't listed, but no it is not that much stronger at all.

you can go 4.88 in the 8.25

[DezertXj88]

Originally Posted by Wearingthin

you can go 4.88 in the 8.25

First time I've heard that, I always thought 4.56 was as deep as it went.

As for the 8.8 issue. Alot of people take a simple piece of 1.5 or 1 3/4" medium walled, and throw a simple truss on it..Cost virtually nothing.

[SFRautomotive]

Originally Posted by DezertXj88

My issue with the 8.8 vs 8.25 is that you don't see many 8.25 spin tubes. 8.8's do it constantly even when they are welded.

We use the 8.8's in jeep speeds alot, and it happens. I'd stick with the 29spline 8.25, honestly people have beaten the sh*t out of them on 35's without issues!

Now decide if you want anything deeper than 4.56 gear's. If you do then forget the c8.25 as it only goes to 4.56.

And axle shaft strength wise..theres a chart online somewhere, but 8.25 is with 50 ftlbs force to a 30spline D44 shaft, the 8.8 wasn't listed, but no it is not that much stronger at all.

Check out the warn break test that was done a few years back. The 8.8 shaft was off the charts and well past the d44 break strength . The8.8 lasted farther than the machine could measure.


Where is this chart you are refering to?

That little 1.18 8.25 shaft is nothing compared to the 1.30 8.8 shaft. Thr carrier is bigger, housing thicker, ring gear larger, pinion and bearings larger, pinion shaft flange stronger and more desirable.

And if people are spinning tubes on a welded 8.8. Then they need to go back and learn how to weld to cast.

[alexrule123]

Thought I was going to snag a set of rubi rims off Craigslist for $300 but when I called them 13 min after posting they told me they sold them a few weeks ago...

[Wearingthin]

Originally Posted by DezertXj88

First time I've heard that, I always thought 4.56 was as deep as it went.

As for the 8.8 issue. Alot of people take a simple piece of 1.5 or 1 3/4" medium walled, and throw a simple truss on it..Cost virtually nothing.

They make them now.

http://www.jeepinoutfitters.com/scri...idproduct=2334

http://eastcoastgearsupply.com/i-160...nion-4-88.html

Originally Posted by alexrule123

Thought I was going to snag a set of rubi rims off Craigslist for $300 but when I called them 13 min after posting they told me they sold them a few weeks ago...

How random. Keep looking, I see a set pop up every now and then across the panhandle

[2doorxj]

Originally Posted by DezertXj88

My issue with the 8.8 vs 8.25 is that you don't see many 8.25 spin tubes. 8.8's do it constantly even when they are welded.

We use the 8.8's in jeep speeds alot, and it happens. I'd stick with the 29spline 8.25, honestly people have beaten the sh*t out of them on 35's without issues!

Now decide if you want anything deeper than 4.56 gear's. If you do then forget the c8.25 as it only goes to 4.56.


And axle shaft strength wise..theres a chart online somewhere, but 8.25 is with 50 ftlbs force to a 30spline D44 shaft, the 8.8 wasn't listed, but no it is not that much stronger at all.

If an 8.8 spins an axle tube and its welded......it wasnt welded correctly. that is a mute point because its almost free to weld the tubes up.

The 8.8 with 31 spline shafts has a 6,500 lb. ft, dana 44s are from 4,600-5,000 lb. ft. Thats quite the strength increase if you ask me