I bought a GMC Safari van from 1984. Some dude's tried to build in a VORTEC
6 cylinder ( blazer 1994) engine but thy failed on the electrics. It was in
a garage for over 5 years now. Since I bought it I mounted an original TBI
6 cylinder from a blazer s10 1987 with a complete cable tree from a Astro
van 1987, found on a scrapyard. The main problem was to get the speedo
going, the transmission those guy's used had an electronic one and the
cable-tree I found had a mannuel speedo. What I did was to get me the
complete transmission from that Astro van so I did'nt have to search fo the
right cable and try to get it going, the "old" trans had also a bit brownish
oil and was smelling badly.
Now to the point:
The "new" transmission is from a 1987 Chevy Astro van, with overdrive ( 4
speed) I suppose it's a 700. I mounted it, refeshed the filter and the oil,
and reajusted the kickdown cable. But it still kept shifting late. Now I
drove it for about 1500 mls. refreched the oil and filter again, the collor
was bright red and had a normal smell, in the drip pan was no sludge or
other parts witch don't belong there. After this, the first 100 miles where
ok I had a complete other car but now it starts late shifting again. What
could it be??
By the way i dont know if the right dipstick is used. It was missing from
the scrapyard and now i used the one with was in that "old" trans.
If you have anny sugestions please let me know.
Thanks and take care.
Marcel van de Riet,