7 1/4 rear end hold up?

Be as gentle as possible and you can get buy for awhile, they are weak but it will get you around just no burn outs or hard acceleration or it's all over. A buddy of mine has been driving around in his 79 lebaron with a built 318 for about six months while he builds his 8 3/4 and hasn't had a problem but he doesn't beat it at all. Good luck and keep your foot out of it. lol