SAS project

[Getliftdhgh6]

I have a 98 4dr 4wd and im going to sas and swap the rear turning it into an 8 lug, 14 bolt rear and dana 44 front. I have a few concerns about starting this endeavor.
1) I would like to use the 44 i have available to me but its out of an 85 k5 blazer so the diff is on the passenger side, im pretty sure i can go pick up an np208 passenger side drop tcase out of a 90 suburban and get it to work anyone ever done an sas with a 44 like this instead of a high pinion out of a 79 ford?
2) I think im gonna use the oru mounting kit with leaf springs up front im trying to do about a 4"-6" total of suspension lift on it. Im not sure which leaf springs to use front and rear any suggestions would help
3) Any suggestions on a transmission. I do not want to use the 4l60E so Turbo 400 or 4l80E?
4) Maybe convert the 14bolt to disc brakes, 100% clueless about that lol.

I appreciate any advice or help anyone can give me im just starting to collect up my parts got my axles so big step in part collection process its my first sas so all the info i can get would be awesome, thanks!

 

[Donnie Yukonie]

Here on TYF there aren't many guys that has done SAS here are some links to help you out

http://www.gmt400.com/forum/showthread.php?13981-Sas-s
http://www.gmt400.com/forum/showthread.php?12080-DirtridinZ71-Budget-SAS-Build

 

[purple 'hoe]

I have a 98 4dr 4wd and im going to sas and swap the rear turning it into an 8 lug, 14 bolt rear and dana 44 front. I have a few concerns about starting this endeavor.
1) I would like to use the 44 i have available to me but its out of an 85 k5 blazer so the diff is on the passenger side, im pretty sure i can go pick up an np208 passenger side drop tcase out of a 90 suburban and get it to work anyone ever done an sas with a 44 like this instead of a high pinion out of a 79 ford?

Using a passenger side Dana 44 will work. Most kit's will allow for use. Fabworx's I know will work. However, are you sure it's a Dana 44? 77-76's had Dana44's, but 77's till 91 OOBS trucks had 10bolt front axles. Unless it's a K30 which will have a Dana60 front. K20's had either a 10bolt or a dana44 standard with a 60 being a option for them.

http://www.fabworxoffroad.com/3252-straight-axle-conversion/

2) I think im gonna use the oru mounting kit with leaf springs up front im trying to do about a 4"-6" total of suspension lift on it. Im not sure which leaf springs to use front and rear any suggestions would help

I'm not very familar with the ORU kit. I've always looked at either the fabworx's kit, the ORD kit and latley the Bloody Knuckle Garage coil spring/radius arm kit. However, calling oru and asking them what springs to go with would be your best option. Or some more research

3) Any suggestions on a transmission. I do not want to use the 4l60E so Turbo 400 or 4l80E?

The 1990 Suburban you are looking at getting a NP208 should actually have a passenger drop NP241. The 241 will work better for you because you have a VSS on your transfer case housing, and so will the passenger 241 case. Which I think will work with your factory wiring

As far as a transmission, I would either go with a built 4L60E or swap to a 4L80E. Find yourself a 1998 4L80E which will save you some headaces when it comes to the ECM

4) Maybe convert the 14bolt to disc brakes, 100% clueless about that lol.

NBS 14 bolts will have factory disk breaks. My 2004 2500HD has disk breaks in the rear. OBS ones will not. If you can't find a newer 14 Bolt, you can find yoruself a good swap kit. ORD makes a good kit

http://offroaddesign.com/catalog/14FFdisckit.htm

I appreciate any advice or help anyone can give me im just starting to collect up my parts got my axles so big step in part collection process its my first sas so all the info i can get would be awesome, thanks!

Hope it helps bud. I'm starting to research SAS swap's again for my 2004 so if you need anything let me know. I can point you in a good direction

Are you planning on rebuilding the axles or no? I personally would with new gears, traction devices and what's not.

 

[the big blue bus]

its a 241 froma 90-91 with the vss. ive got one for my project. going to use sky 2.5 hangers and 52 inch springs. have a 10b front axle and a set of flat tops for it. not sure if im going to keep the 10b or find a hp ford. not regearin the axle for that reason. anywuestions let me knwo

also on the 4l60e to 80 swap the 80s have 32 spline while the 60s are 27. make sure you get a case with matching spline count or it wont mate together