[Syn77]

So heres my info I have a 77 & 76 chevy k10 truck n monte im putiing a 14 bolt on the truck my 12 bolt on the monte could this work n am I able to make it posi the car and the car is
Five lug the truck six could I change that

[ericnova72]

If the 12-bolt is from a truck, it will not have the upper ears cast onto the centersection for the rear upper control arms on the Monte Carlo...so it won't work.

Welding ears to the centercasting is not advisable either. Welding castings is always a crapshoot if it will hold.

[Syn77]

So ive asked this before but could I use this axle in,my monte im going,to,change,the stock suspension so could I use it havent decided what,susp but not stock maybe coils and 3link but could,i use this axle for this

[TroyBoy]

My question is-why? Even if its the same width-(short answer) no. Having owned a 76 and a 77 for several years ago and raced them, I would say you are better off with the 10 bolt thats in it. As far as the suspension goes-why are you trying to re-invent the wheel? They have a great factory 4-link from the factory, just box the uppers and lowers. The truck 12 bolt is not actually not as strong in the pinion area as the 10 bolt. If its just a matter of better gears, put better gears in it and then you won't has a cobbled up/ rigged up rear suspension. JMHO

[Crosley]

Syn77 ... I merged your 2 threads on the same subject into one thread.

The money spent to install and modify a truck differential into car use may be better spent on a car differential to strengthen up the car differential. That way the diff bolts in and you do not need to modify suspension mounts

[Syn77]

Ok guys thx so posi n upgraded axleshafts

[6426yy]

What year is your monte? If it has a 7.5" 10 bolt I'd look for a 8.5 or go 9" ford, if your gonna throw any power to it. They do make upper control arms that allow you to install a car 12 bolt into g-body.