4L60 no second and no fourth
https://ls1tech.com/forums/automatic...-gear-all.html
https://ls1tech.com/forums/automatic...t-trouble.html
(You can skip the OP's initial 1500-word long description.)
If you are not comfortable welding, a local trans shop might be able to do this for you. I learned this "trick" from a local trans shop mechanic.
Obviously this assumes the band is only worn; if it is broken you will need to remove and rebuild the trans.








