The Jack (car Parts)

[Vorshin]

What are teh parts required to be installed for the Jack?

So far i know 2.

Shovelface (car Body)
Baby Bar
Rimmer Grill Tussel (2nd one in)
Engine (Bantam v6) - (2nd one in)
Border Spikes - NONE
Rims - NONE

(i had done the questline to Gut's stronghold and done teh wore, but from this point my questline fails to update after installing the BabyBar, it still asks me to install that?

I gave up after doing several routes trying to get it to register, and now i cannot remember what the parts were (they no longer have that green dot saying needs to be installed) as i have been told exiting the game and reloading the game when they are all installed can progress or if not doing the same with alkl parts except the babybar.
However nobody has said what car parts are needing to be installed. If this breaks progress of teh main mission/questlien then parts above this should NOT be availble to be gained untill afterwards.

UPDATE - after countless searching and searching i finally found the parts required. CHECK TOP..

[Keenfire]

Is there a green circle around some of your cars parts? If so you need to "downgrade" to meet the requirements to get the body and any extra, once you build it, then upgrade it more. Basically they are just telling you what you need to do to upgrade to the next stage. Just go get more loot and quest more, as you clear the areas your parts will unlock.

[Vorshin]

nope, not a single part has a green circle around it, i have most of the car parts now, i just need to know which car parts are required so i can place them and then try the exit/relaunch game to see if that triggers the next phase. As i changed everything to the max parts again and for teh life of me cannot remember the parts that need to be installed.