Outer Limits 4x4 Board

hey guys i may seem like a bit of a ball breaker by now but i picked up my reconditioned box yesterday and me and a mecchanic mate took to reinstalling it..92 jtop 3l v6
we just about got it in but it looks like a no go only by about half an inch the bastard just wont go in we will be getting another man on the job tommorrow to try help wiggle it in but it just seems to me it is getting stuck we tryed attaching the rear axle and turning it to try align the front splines but that seems to not budge its in but just wont go thaat little bit extra its definately the right box and everything any ideas guys?

Spigot bearing the right size?
Clutch plate properly aligned?
Gearbox lined up square? Check the gap around the bellhousing to block?

yeah everything is exactly on the dial ill be pulling it back out tonight to tripple check everthing again maybe the clutch is out by a tiny bit from all the jiggleing around...

all good now i think guys i just got it in now all by myself i think its in right? will find out tomorrow when i finish up

I walked away from mine for a night with the same prob (but I was doing the job myself). Ended up being the starter lead from the battery was in the way.

yeah thats a Cookie of a wire it got in the way more thsn once..

i ended up with a bottle jack wedged inbetween the rear of the box and the diff and gave it a little jack it seemed to pop in andthen i just put in a bolt in every corner and it seemed to sandwich together quite easily after that.as i said i will be trying to put the rest together tomorrow night and i hope its all right..its a big job to do at home in a low garage..