Cutting access holes in trunk for diff bolts?

[a32guy]

Anyone ever do this? I picked up an e30 and the diff bolts are backed out 1/2" and siezed in there. I used heat and deep creep for a while, but its just not worth the effort. I'd like to know if its possible to get to the bolts through an access hole? This way I can just throw the impact on em.

Thanks in advance.

-Chris

[StereoInstaller1]

Hell of an idea! Do it. Make your holes an appropriate size so you can buy caps to seal your trunk back up should you get luck enough to have flat metal above them...I am gonna look at mine today!

Luke

[dark89e30]

I would try some Mopar rust penetrant. Its the best thing they make, and if it works, you don't have bolts broken inside your diff case...

[JonathanJ.]

Don't know if there is room for this, but a chisel and hammer often work for me to knock rusted bolts/nuts loose. Obvious downside is that it will destroy the bolt/nut.

Good alternative to an impact.

[browntown]

I really like that idea, because I hate removing rusty diffs on these cars. I will say that the best tool I bought for the job is a flexhead 19mm gear wrench -- then slip a pipe over the wrench or hook on another box wrench and you got some leverage

[jmarch]

It's not that hard just to drop the rear crossmember with the diff intact.

[Erick]

I really like that idea, because I hate removing rusty diffs on these cars. I will say that the best tool I bought for the job is a flexhead 19mm gear wrench -- then slip a pipe over the wrench or hook on another box wrench and you got some leverage

Word. And dont forget the 10mm Hex wrench for the half shafts + the 13mm for the drive shaft.

[MR 325]

It's not that hard just to drop the rear crossmember with the diff intact.

Exactly what I was about to say.