Rear end advice for racing with a 4 speed

I would build a ford explorer 8.8. 31 splined, disk brake, they hold up to abuse. You can build one for less than $200 bucks.

Here’s my list in order of strength price wise I would argue the 8.75” is the most expensive to find, build, hardest to source parts from aftermarket.

1. Dana 60 strongest axle shafts 1.46” dia.
2. 9” strong/well supported parts axle shafts 1.33” dia.
3. 8.8 plenty strong/well supported parts cheapest to build axles are 1.29” dia.
4. 83/4” overpriced IMO. 1.25” shafts seen to many twisted axles for me to believe they hold up to abuse. Hell UTG destroyed his 83/4 with his 250hp 4 speed bottle rocket. Hehe! You also have to be mindful of the different carriers and pinion gear sizes.