I'm picking up a 1994 Blazer with a blown 6.5t diesel for $500. Heres what I want to do.

94-98.5 P-Pump 5.9 CTD :bow:
47RH Transmission
Auto World Motor mounts
Factory Radiator / Duramax or Cummins IC

Feel free to add to my list! Also can anyone tell me what Wiring needs to be done and What sensors I need to change to get gauges etc to work? Will my GM T-Case work with the 47RH?

add to list:

HD springs up front
swap in D60 or trussed D44 w/ HD axle shafts and hubs
swap to 14 bolt rear (the smaller 14 bolt rear should be easy to find in junkyards)
guages: mechanical water, oil; aftermarket tach; speedo sender/cable/guage from donor IF mechanical speedo
intercooler from donor
possibly go to electric fans to save on space under hood

... Will my GM T-Case work with the 47RH?

i'll take a shot in the dark and say no. if you swapped in a LH diff fron axle, you could use a dodge transfer. if a RH side, maybe the only solution is to call advanced adapters. 'course, all they'll want to sell you is their Atlas transfer. you probably don't have the wheel base to do a divorced 'case, so you may be limited in that respect w/ a RH output.

oh yeah, forgot about custom driveshafts, too. plus new wheels/tires to match your new bolt pattern.

wiring can be simple: only 3 wires needed to make a CTD run.

then, after all that, if you turn up the CTD much, you'll have to build on that tranny - between $2k - $5k.

basically, get a 3/4ton dodge and swap EVERTHING into the blazer. this will be EASIER to do what you are wanting.

the EASIEST way: take that 3/4 ton dodge, remove body, shorten frame, add blazer body on top.

any way you slice it, lots of work to do right. still a cool project, though. :Thumbup:

Hmmmm sounds like it will be actually easier to keep the 4l80e.

Your blazer transfer case should unload on the LH side right? If so the dodge would work. Only the older chevys unloaded on the RH side so with that being a 94 you should be ok.

Your blazer transfer case should unload on the LH side right? If so the dodge would work. Only the older chevys unloaded on the RH side so with that being a 94 you should be ok.

oh yeah, good point. if this is an IFS truck, then the xfer is a LH output and your dodge xfer can work. yep, thought this was a straight-axle truck.

ok, i still go back to my original concerns about weight and differential strength. the 1/2 ton stuff ain't gonna cut it for anything else buy hi-way use, and service life will suffer even at that.

:popcorn:

Yeah, it's a LH drop. So in theory I can change the input shaft and be all set with a 47RH?

...So in theory I can change the input shaft and be all set with a 47RH?

wait, what do you mean - bolt the dodge tranny to cheby transfer?? i'm guessing no, but am not sure on that one. i think you should stick w/ the dodge powertrain as a whole (as in, dodge transfer, too). that'd be a much easier process. unless you can get/find/fab an adapter....

besides, if you were using a (did you say?) 4l80E, you'll have to mess w/ a stand-alone tranny controller. and, don't even know if it'll stand up to the cummins w/out some work to it, anyway.

so i'd stay w/ the package that it came w/.

You can use a PCS trans controller. I have heard of a lot of people who have used a stock 4L80E with this controller and once you get them programmed they work great. I think you might be able to just use the chevy case for now but you may have to upgrade if you make some good power. I also agree that the half ton ifs components will be weak, but you could upgrade it to 3/4 ton or 1 ton stuff. Should be plenty in junk yards. But I would go with a D60 conv, but that is $$$$ you can spend other places for now.

Here is a link to the controller that destroked uses. It is $850 but you can use your trans.

http://www.destroked.com/pdfs/tcu_product2.pdf