Recent content by jmracecar

A standard G50 open diff is lousy for a high-torque application. With all due respect, one-wheel drive is hardly worthy of the rest of your project. The open diffs fail to bring $50 at auction here on eBay, which is reflective of what they are worth. They direct power to the wheel with the least...

Good job, nicely done! Be careful though, the car this box was designed for made 247 flywheel hp and 228 foot pounds of torque. If you are careful I think you'll be Ok, but if you try hard enough with gobs of V8 torque you could probably break it. Also the diff plates will wear out. The diff...

I am looking for this sort of thing, to complete another I have that would then be available (Big-foot has first shot at it). Looking forward to the photos. I also need an end cover (as this one does).

See previous threads on oil level for inverted G50's. This topic was covered very thoroughly. As far as the shifting, no that is not right. You should be able to get 5th at any time. Don't do it while rolling backwards obviously. First check your clutch for full release with the car in the...

Porsche finally released the parts and diagrams for these transmissions, roughly a year ago. The article from Lufteknic is good, they know their stuff. Their website is not updated often though, and has not been updated for this issue though AFAIK. The G96 and G86 transmissions are now...

There are several series of G96 transmissions. The regular Carrera G96.0x manual gearboxes do NOT have the same bolt pattern, circle, radius, diameter, or anything as a G50. The Turbo and GT3 gearboxes DO have the same old G50 bolt pattern & circle. Same as a G50 or G50/50. Bigger price though...

It is not a straight swap. The C4 version works with an external hydraulic slave cylinder with a lever mechanism to achieve a variable percentage of lock. Without that variable lock mechanism, you won't have much if any lock. Also it uses different axle flanges. I'd say to keep looking. Fwiw...

I am not a real expert, but I sure do take an interest in these things. Always learning more. One thing I have not learned is where to buy these darn things. Demand is up and supply is down. Prices are way up, and quality is not, usually. I have most of a 930 box available, but it is in...

As before I agree with Lynn. Rodger is one of my mentors, so, far be it for me to tell you to tell him what to do. You are in very good hands. I am sure he will go over whatever makes sense. I am ultra-curious to hear what he recommends, if you don't mind updating us. Especially his take on a...

Doin' fine Lynn. There are cheaper gears though, e.g. from Guard Transmission, or PowerHaus II. Oh wait, you may mean for a set of gears, in which case, no argument. The only alternative there is to hunt for used ones, which can still run $400 to $500 per ratio. If the diff is not limited...

The standard G50 is not as strong as a 930 in certain ways, I agree there. Note that the G50/50 series would be stronger yet than the 930 box in most respects (except for the ring gear diam). It seems a lot of the hype around G50's got out there without drawing much distinction between G50/0x...

Guard Transmission makes different "ramps" for the Porsche 911 transmissions so you can set different lock percentages. They have 40/60, 50/80, and 80/80 for example.

Hmmm, good question. Porsche OE flywheels are steel... There's always the old fashioned engineering method. Torque one up gently til it yields, then use 50% or 67% of the value at which it failed ;-)

Correct, that is what Porsche says, with M8 bolts 8.8 grade. Dry. While you can go higher, that would not be book spec and the bolts may yield. Maybe if you went to 10.9 or 12.9, but that wasn't the question. If you already torqued them to 25 foot pounds or higher, do yourself a big favor, take...

JohnC- YES the G50/50 is definitely stronger than the G50/03. From that standpoint it is a no-brainer. Where it becomes a brainer is determining what condition it is really in. How many miles, how used, was it ever rebuilt? We really can't know without asking someone we trust who knows, if...