can some body give the length difference between a 241 and 203, bolted behind a 350,my 78k5 has a new 350 that was bolted to a 203 and i bought a clean 91 k5 body and chasis no motor,tranny or tranfer but has new double tubed drive shafts front and rear. i believe the 91 came with a 241 and i'm wondering,if i will be able to use both or will the rear be to short. if it makes a difference the 91 has a 10 bolt /12bolt my 78 has d44/12bolt, witch i'm swapping in as well.thanks for any input