Re: Give Me the Low-Down On \"Super 35\"
In my opinion, then, your friends grandson needs a bigger rear end. I'm saying this because if he is blowing the stocker with no locker and 31s, his right foot is going to be way too heavy for the 35c with a locker, even with the bigger axle shafts.... and especially after he gets bigger tires (everyone always does). Just my 2c.
The super 35 kit is best for someone who is in the situation I was in when I got mine - not sure if you're gonna go far in the 4 wheeling thing, want a little more performance, but want to be able to back out of it if you decide you want to, also using the kit as prevention against breakage that might happen rather than a cure for breakage that is happening. When I got mine I wasn't having problems with my 30s, and got it to forestall any problems when I moved to 33s and a locker. If your friend's son gets this, the locker may negate any additional strength the axles give (lockers are naturally harder on axle shafts than open diffs) if he's that heavy with the right foot.
He may even be too rough for a D44 if he goes too big in tire size. That's the other reason I'd recommend against it - if he's wheeling that much then he's gonna want to go big sooner or later. This kit it best for people not going more than 33 X 12.5 and with a light right foot, in my opinion. Sounds like a big limitation, but probably actually describes 95% of the people out there.
The kit consists of 30 spline (D44 size) axle shafts, new wheel bearings, and either a modified stock diff case with a lock rite locker (cheaper) or a detroit locker (more expensive). It installs quite easily if you are not changing gear ratios.
After installing the kit the rear end is still weaker than the D44 in the Ring and Pinion, and also the axle is infamous for bending the axle tubes, so you might want to truss the axle.
The qualities of the 35c is always a hotly debated subject - some say it's fine (look at Curt's Revolver rig in the ARCA Rock Crawling championship - trussed 35c with a detroit super 35 kit) in modified form, MOST say it is breakage waiting to happen. You kinda have to decide for yourself, but personally if the right foot is that heavy I'd go for something bigger.
Swap candidates: 8.8 (you know about), XJ D44 (hard to find), Waggie D44 (post '86 - different bolt pattern), scout D44 (different bolt pattern), custom (expensive)...... personally I think either the 8.8 or the XJ D44 make the easiest swaps, if you can find either one.
All of this is just my opinion.