looking for info

[Vurpp]

I'm looking for info to help me plan a possible overhaul of my drive train.
Stuff like what engines can be used besides the 4.3, then what tranny to rear-end goes with it, computer, wiring , etc. Thanks

[BlazerLT]

buy a repair manual.

[david cottrill]

need vacum diagram four 4 wheel drive

[david cottrill]

need vacum diagram four 4 wheel drive s10 4.3 standerd shift trans

[Mikado14]

Originally Posted by david cottrill

need vacum diagram four 4 wheel drive s10 4.3 standerd shift trans

Don't have the ability to post a drawing but here is a description:

The vacuum is the same on either automatic or standard. The vacuum supply runs down the firewall to the actuator, a line runs to the vacuum motor under the battery, the third vacuum line runs up the firewall in the vicinity of the heater box towards center of vehicle and it will have a vented cap, this line is the vent line for when you disengage the 4 wheel and the motor must be released.

All three lines come from the vacuum actuator switch on the transfer case.

[mbis57]

91 s-10 blazer heater vacum lines are running opposite. Meaning when I turn on heater the compressor comes on and when you put it in A/C mode compressor doent run. It looks like it can only go one way so what do I do with it....any reply would be great.....Mark

[Wags391]

If you want a diagram sent to you, send an email to [email protected]. I made one when I was replacing all those hoses.