1987 silverado 4x4
#1
1987 silverado 4x4
I have a 1987 silverado 4x4 350/700R4 that I would like to put a 5.3, 5.7, 6.0, or 6.2 with a 4l60e or 4l80e in. My biggest concern is getting a transfer case to work with this combo. Is there a transfer case that will bolt up to one of these tranys with the front drive shaft on the passenger side? Im also not sure what I would need to do to make the speedometer work depending the combination I need to use. If anyone know what will or will not work I would really appreciate any info.
#2
I did a 5.3/4L80e swap into my '86 K5 about a year ago, it was still a 4x4 at that time.
You might find this thread useful:
http://67-72chevytrucks.com/vboard/s...d.php?t=489826
You might find this thread useful:
http://67-72chevytrucks.com/vboard/s...d.php?t=489826
#3
"I had to find another NP208c with a 32 spline input shaft to mate up to the 4L80e since the first year 4L80e was 1991 and the last year for the NP208c was 1987 (at least with GM). I had to knock out an inch from the rear driveshaft, but the front will work."
Thanks a lot. I want to do exactly the same thing to my truck. What year of trans and transfer case do I need or is it possible to just have a different input shaft put in my 208. If I have to change it would it be better to go with a 241? Will any transfer case with the 32 spliine input work or are the adapter housing bolt patterns different?
Thanks a lot. I want to do exactly the same thing to my truck. What year of trans and transfer case do I need or is it possible to just have a different input shaft put in my 208. If I have to change it would it be better to go with a 241? Will any transfer case with the 32 spliine input work or are the adapter housing bolt patterns different?
#4
"I had to find another NP208c with a 32 spline input shaft to mate up to the 4L80e since the first year 4L80e was 1991 and the last year for the NP208c was 1987 (at least with GM). I had to knock out an inch from the rear driveshaft, but the front will work."
Thanks a lot. I want to do exactly the same thing to my truck. What year of trans and transfer case do I need or is it possible to just have a different input shaft put in my 208. If I have to change it would it be better to go with a 241? Will any transfer case with the 32 spliine input work or are the adapter housing bolt patterns different?
Thanks a lot. I want to do exactly the same thing to my truck. What year of trans and transfer case do I need or is it possible to just have a different input shaft put in my 208. If I have to change it would it be better to go with a 241? Will any transfer case with the 32 spliine input work or are the adapter housing bolt patterns different?
You can reuse your existing NP208c if you have the front input changed.