Auto to manual swap
February 28th, 2024, 2:03 PM
#1
Auto to manual swap
So it's time to replace my 4.3 in my 91 Vandura, I am considering a 4.3 vortec and a manual transmission. What difficulties should I expect to run into and what parts and transmission should I be looking for?
thanks
thanks
February 28th, 2024, 5:43 PM
#2
I’m pretty sure that the crankshafts are different
February 28th, 2024, 7:39 PM
#3
February 28th, 2024, 8:49 PM
#4
I understand what you're talking about. I said I'm pretty sure the engines are different depending if you're hooking it up to a manual or automatic, so that's something to keep in mind, since you asked.
The vans haven't had a manual transmission since the 80's (before yours), so you're looking for some old equipment, and likely some custom mounting.
The vans haven't had a manual transmission since the 80's (before yours), so you're looking for some old equipment, and likely some custom mounting.
February 28th, 2024, 9:02 PM
#5
I understand what you're talking about. I said I'm pretty sure the engines are different depending if you're hooking it up to a manual or automatic, so that's something to keep in mind, since you asked.
The vans haven't had a manual transmission since the 80's (before yours), so you're looking for some old equipment, and likely some custom mounting.
The vans haven't had a manual transmission since the 80's (before yours), so you're looking for some old equipment, and likely some custom mounting.
February 28th, 2024, 9:11 PM
#6
no clue. You are venturing in custom territory which means doing your own measuring and fabbing.
Last edited by mountainmanjoe; February 28th, 2024 at 9:12 PM.
February 29th, 2024, 8:18 AM
#7
CF Junior Member
You're going to have to come up with some sort of shifter linkage to have the shifter on the floor. In a truck the engine is up front with the tranny between the front seats. In a van the shifter would come up too far back to be practical.
You'd have to rig up something like a front drive manual has where the stick goes into a shifting mechanism bolted to the floor and transerres the movements to the tranny through cables or rods.
You'd have to rig up something like a front drive manual has where the stick goes into a shifting mechanism bolted to the floor and transerres the movements to the tranny through cables or rods.
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February 29th, 2024, 9:58 AM
#8
You're going to have to come up with some sort of shifter linkage to have the shifter on the floor. In a truck the engine is up front with the tranny between the front seats. In a van the shifter would come up too far back to be practical.
You'd have to rig up something like a front drive manual has where the stick goes into a shifting mechanism bolted to the floor and transerres the movements to the tranny through cables or rods.
You'd have to rig up something like a front drive manual has where the stick goes into a shifting mechanism bolted to the floor and transerres the movements to the tranny through cables or rods.
Now if I'm going to all that effort, maybe I should just center mount a twin turbo LS and make a GMC super van!
Last edited by gfunkadunk; February 29th, 2024 at 10:03 AM.
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Rednucleus (February 29th, 2024)
March 1st, 2024, 12:39 PM
#9
CF Junior Member
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