New diff and shunting

[SILICONEKID345HP]

My friend (mechanic) had the car on the ramp today to find every bolt loose.

Is this normal ?

Edited by SILICONEKID345HP on Wednesday 22 March 19:57

[SILICONEKID345HP]

The problem is the bolt at the back can not be tightened because they are round, think they are called head cap .

The bolt head is a few mm from the body so I cant work out how they fitted it .