Official NBS 4.3v6 to GEN 3 V8 swap Guide

[Frenchy]

You need to get a crank relearn done

[Fadingglories]

No no tranny problems before this at all. I just think that it was about to go out anyways. Now i have to limp it around town and stuff till I get enough $ to get a decent tranny. A reputable shop quoted me 1100 for a built tranny with a 1 year warranty, Does this sound about right?

[DennisG_02Silverado]

No no tranny problems before this at all. I just think that it was about to go out anyways. Now i have to limp it around town and stuff till I get enough $ to get a decent tranny. A reputable shop quoted me 1100 for a built tranny with a 1 year warranty, Does this sound about right?

thats pretty resonable..... i paid a couple less than that at local tranny builder, that does nothing but gm rwd transmissions

[DennisG_02Silverado]

my tranny went out two weeks ago, when i did my swap about a month ago. tranny lost 2nd completly then couple days later it wouldnt even go in gear. never had any problems with it before

get my built tranny back tomorrow morning

[banker099]

i guess i better consider myself lucky, im still on my original v6 tranny

[DennisG_02Silverado]

ok i got my tranny back yesterday from the shop. took me alittle while but i got it installed. still dont't go in gear

first of all bout three weeks ago, 2nd gear went out. then couple days later the truck just wouldnt do anything while pulling into a parking lot.
emptied tranny fluid, no shavings nor smelled burnt. disconnected lines and no fluid flowing through

got trans back and they said nothing was broken inside but the installed a beast sunshell, however couple of clutches burned and bands. i installed it, put tranny fluid in. let truck run began to put more in and check. put truck in gear nothing.... anyway

they said my converter might not be shimmed right...... i was like ok i drove thetruck for two weeks with no problem after swap. then they said it could be wrong bell housing??? i think they never checked the pump to begin with, bc i'm still not getting fluid flow after their competion rebuild

has anyone ever had to shim the torque converter?
is there a different bell housing for v8 trucks?? called chevy dealer and they said it was the same

[Fadingglories]

I am a newbie when it comes to auto transmissions but i have never heard of anyone shimming anything on the torque converter. My dad bought a built trans a couple of years ago and had problems from the second he installed it and thought it was him when it turned out that the tranny shop put it together wrong. In the end he ended up with a free install and a couple of free upgrades. Back to your shimming, From the little that i know i believe the torque converter just slides onto some splines and thats it.

[banker099]

bell housing is the same, and ive never heard of shimming the TC

[DennisG_02Silverado]

thats what i thought.... i'm pulling the tranny back out tomorrow morning and taking it to the guy. he just started throwing these excuses at me prolly bc he hasnt had anyone to build a tranny thats done a swap like this.

[Fadingglories]

thats what i thought.... i'm pulling the tranny back out tomorrow morning and taking it to the guy. he just started throwing these excuses at me prolly bc he hasnt had anyone to build a tranny thats done a swap like this.

How did your tranny work? I got mine back and got a smokin deal on it and it works great. I just wish i had put in a cam or a 6.0 now but thats another day perhaps...