92 blazer w/350

[dbcustoms]

i have a 92 4 door blazer that i did a 350 swap last year, since then i have had problems keeping u joints in it, even with the heavy u joints, i finally got a set to hold now but i have a bent main shaft in my transfer case and a bad tranny now.

what do you guys suggest for a tranny and transfer case?

i currently have a 700r4 that was behind the 4.3 and a 231c transfer case.

i though maybe a 700r4 out of a fullsize and a 241c transfer case out of a fullsize? what do you guys think?

[Hammer Head]

I don't really care who says what... a 4.3 trans is the same build as a V8 trans. The only difference comes when a 60 degree trans is brought up. They are the weaker trans.. not the 4.3's trans.
The transfer case out of an AWD Astro/Safari, Bravada or Sy/Ty is the same unit (IDK what case ID that is offhand) & has a rating of about 250-300hp.

[Tink]

X2... the only difference I have found in the 4.3L 700r4 and the fullsize is the governor. The earlier 700r4s were junk and gave the 700r4 a bad rep... there was a design change in 84.
Build correctly, a 700r4 is a good tranny and the NP231 is one of these best transfer cases - jeep guys swap to these from NP207s all the time.

[trusconi]

i thought the change was in 87 it went from a 7 vane pump to a 10 vane pump or was it 10 to 13.

[spideyjected]

Lead feet will do that. Mine has 154,000 on it and shifts show room new. "knock on wood".

[Tink]

i thought the change was in 87 it went from a 7 vane pump to a 10 vane pump or was it 10 to 13.

The change in the pump was about that time, but the change to enable you not to run lock-up was 84 - the big problem was that the lock up would fail or people would unplug it and burn up the tranny, giving the 700r4 a pretty bad rep.

The change to 13 vane pump from 10 was 92 - the 4L60, not electronic, but the better pump plus a few other internal modifications.

[dbcustoms]

so i should be fine just replacing what i had with the same things then.
i figured the tranny wouldnt last long considering it had 185k miles on it when i did the swap. i just wanted to see if anyone though there was a better way to go.

[trusconi]

change it to a manual i am currently doing that with my blazer (see signature) so far i have the pedal assembly installed.

[Hammer Head]

..& I have the NV3500 trans for sale (Cheap!)

[dbcustoms]

its a trail truck though so the auto works good