coodah wrote:Mark, Thanks for replying. You will have to excuse me because I am fairly new to 1st gen CTD's. Was a chevy guys and bought my 90 CTD and have never looked back. As far as this 1990 3/4 ton gas truck in the salvage yard. It is a cab chassis truck with a Knapheid bed. I know for a fact it has a D-60 front axle with manual locking hubs. If I understand correctly from the replys this should interchange with my 1990 CTD. In regard to the transfer case and transmission in this gas truck, I want to say that the truck has a 5 speed manual transmission, going off memory here so I may be wrong. I understand that it is not a Getreg so it is useless to me. If I understood you correctly since the front axle is D 60 the truck should have a NP 205 tranfer case that will interchange with my CTD. However, are you saying the input shaft spline count will be different? If so is this easy to change by replacing the gaser adapter sleeve part #4505 305, or does the input shaft have to be changed in the transfer case too. I also understand that the output shaft may house a different size u-joint as compared to the CTD Getreg. Is this to0 something easy to change or will the internal output spline shaft on the transfer case need to be changed to accomodate the larger u joint used o CTD's. I hate to see this old girl get crushed if me or someone else can use these part. The entire truck can be bought for around $800. They drove it in to the junk yard but the brakes are out. I figured I could take off what I could use and still get $600 in scrap metal value when I've picked it clean. Your thoughts? Thanks, Curt
Curt,
Most likely the trans is a 4 speed, if it is a gasser rig.
The only 5 speed offered in 1990 was mainly used in Dakotas and 1/2 ton fullsizes, it was the all-aluminum model NP 535.
As I have mentioned, the 4 speed and the automatic NP205s both use a 23 spline input.
The Getrag version of NP205 is a 29 spline input.
The 23 spline case has a smaller outer diameter on the input bearing, so the case would need machined and you'd have to get the hard to find input and the even harder to acquire bearing retainer, or "bowl".
There is a company that makes a 2-sized splined coupler (29 to 23) that alleviates some of the hassles.
The ouput yoke, on this gasser 205, is most likely a 7260 U-joint. The diesels are the 1410.
$800 for the whole rig isn't a terribly high price, as the front axle will bring $400-$600 and the NP205 is still worth a couple hundred.
Then, as you said, stripped with the worthless stuff, engine, trans, etc, it should still bring a few hundred in scale weight.
If it's not rusty or too beat, you should save: taillights, fenders, doors, bed
, grille, interior trim, headliner trim, switches, steering column, t-case shift linkages, pedals, clutch hydros of ANY sort, and other silly-seeming stuff.
Even the manual trans wiring harness on a '90-'91 gasser will work on the '90-'91 non-intercooled diesels.
I'm one of those guys that given time (and money), if I find one in a yard that I can't buy complete and it's decent, I'll pick as much off it as I possibly can, unless I am in a hurry to get home.
It's probably why I have 2 junk Ramchargers with 1stgen parts in them, plus a small camper and various cabs, stuffed with miscellaneous STUFF from these things, because I can't resist a deal on a decent part from a 1stgen.
Mark.
by coodah » Thu May 26, 2011 10:48 am 
