Old77’s GMT400 SWB 4x4 5-speed project/DD

[legopnuematic]

What kind of drill bits are you using? A real (not hardware store) M42 HSCO (high speed cobalt) drill should be able to make its way through without issue.

Also I have found when trying to pound solid rivets out, sometime going the other direction goes easier. Not sure if it’s because of some misalignment stack up or diameter difference or what, but might be something to try.

Or a Carbide burr on a die grinder and knaw it away.

 

[Old77]

What kind of drill bits are you using? A real (not hardware store) M42 HSCO (high speed cobalt) drill should be able to make its way through without issue.

Also I have found when trying to pound solid rivets out, sometime going the other direction goes easier. Not sure if it’s because of some misalignment stack up or diameter difference or what, but might be something to try.

Or a Carbide burr on a die grinder and knaw it away.

Yesterday I got some Dewalt Carbide bits and they worked pretty well in the lower ball joints. Or at least better than my other bits were. I could definitely stand to have an actual good set of drill bits. I think that definitely bit me in the beginning. And I might have to go down the Carbide route on that 4th hole on the upper arm. We'll see what progress brings tonight after work and see how things go. I'd REALLY like to have job wrapped up by the end of the night tonight.