I know this thread goes back a year,but I'm considering putting a New Process tranny in my '69 C-20.I found one in my area for a good price,but want to be sure I understand all that is involved.The tranny I'm considering has the funky GM/Mopar bolt pattern on front of trans case..shift rods on the side..case looks to be cast iron,20 1/2" long,10 spline input shaft (7" long from front of case).The guy who is selling it says it was mated to a '78 350 block which was installed in a '87 Chev 4WD 1/2 ton P/U. :rolleyes:
I think I have a fair understanding of what I need to do according to magic mike,which is, to definately have the factory bellhousing,and I will need a rear trans crossmember, and possibly need to remove the front trans/bell crossmember to clear the newer style "round"factory bell.The reason I bring this up is that in a reply by Tom (tlowe),he states "...bellhousing bolts share the GM pattern on pass side,while the driver['s]side only the lower bolt is the same as GM.I think you could easily modify your bell to accept this bolt...". Question: Are these two guys refering to the same pattern,or am I missing something ,and 2..has anyone done this swap that can fill me in on what I'm potentially getting into?
I really like the idea of the OD, both for the lower rpm's at highway speed, and the increased fuel economy, but I don't want to end up with an oversized paperweight.
Any help is appreciated.
P.S. I'm going to meet this guy on Sunday to take a better look at it...comes with a Hurst shifter AND he has the original factory bellhousing.
God Bless,
