First, please don't blow me off as a crackpot. I've been racing MG Midgets with Vega/Monza wheels for 30 years. The cars share a 4 bolt 4 inch pattern. Most of my race rubber are on the 13 X 6 steel sport rims, but I also have a set of Cosworth alloys.
Here is my dilemma. I currently run a 150 hp Toyota 4AG in the car in hill climbs in Vermont. The standing starts and horrible bumps on the "paved" summit roads are testing the stock (welded) MG rear end. My aftermarket axles are twisted and the hubs are in bad shape.
Hopefully you have read this far. My thought is to put a Vega rear end in the car. It will be much stronger, and retain the wheel lug pattern. The vega has 9 inches wider track, so I could either narrow the Vega rear or run it as is with wheels sticking out 4.5 inches each side. So, I ask for some help/advice.
1. Does anyone have one of these units in New England or New York that I could look at and maybe buy? I think either the early units or later ones will be strong enough.
2. What ratios available? I currently run 4.55.
3. Is posi readily available? I hate welded diff, but hate wheel spin more.
Feedback or advice welcome