Darrin:
What Chris and Molleur said is basically the way to go. Unless you spring for a ZF box those are the two strongest OEM boxes out there.
Another consideration is engine mounting/gearbox position. The G-50, 930, and ZF boxes can be run inverted and this allows a preferred motor position IMHO, the Audi can't so your motor will be higher, how much depends on what you need to clear bodywork. The half shaft angles may be a little excessive, and I have seen motors mounted in a front downward position to accommodate the axle position on the gearbox. With the Porsche and ZF boxes one can acheive a slight angle rearward, maybe as much as 5 deg. which is about what stock V-8 engines are factory set, and have a reasonable half shaft angle.
Two things going for the Audi...easy shift linkage setup, and cheap. The adapters are readily available.
There is an intermediate case upgrade for the Audi but I have not seen how much strength it really adds.
Also, check out the Renault boxes, very reliable and available at a reasonable cost.
Good luck choosing.
Phil
What Chris and Molleur said is basically the way to go. Unless you spring for a ZF box those are the two strongest OEM boxes out there.
Another consideration is engine mounting/gearbox position. The G-50, 930, and ZF boxes can be run inverted and this allows a preferred motor position IMHO, the Audi can't so your motor will be higher, how much depends on what you need to clear bodywork. The half shaft angles may be a little excessive, and I have seen motors mounted in a front downward position to accommodate the axle position on the gearbox. With the Porsche and ZF boxes one can acheive a slight angle rearward, maybe as much as 5 deg. which is about what stock V-8 engines are factory set, and have a reasonable half shaft angle.
Two things going for the Audi...easy shift linkage setup, and cheap. The adapters are readily available.
There is an intermediate case upgrade for the Audi but I have not seen how much strength it really adds.
Also, check out the Renault boxes, very reliable and available at a reasonable cost.
Good luck choosing.
Phil
Last edited: