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vitara auto into sierra
Posted: Sun Feb 25, 2007 6:41 pm
by simcoz
Just wanna know what is involved in puting a 3 speed auto in a sierra.It already has a g16b in it and i have a flex plate aswell.I wanna keep the sierra transfer but don't know what to do with the back of the auto.
I'm trying to find out what i will need to do this and if it will be strong enough to handle hard comp work.
And yes iv'e tryed doing a search but the results are very random.
Thanks in advance COZ.
Posted: Sun Feb 25, 2007 9:34 pm
by Gwagensteve
The output shaft of the vitara auto has the same spline/dimeter as the output of a sierra gearbox.
You will need to make a plate to cover the rear of the vitara case, with a seal and support bearing that has the same ID as the OD of the sierra slip yoke.
I have this all sitting in a chassis in the shed so I have spent a bit of time figuring it out, but I haven't actually built it yet. Doesn't look to hard though.
You will have to take about 1.5" out of the jackshaft, which should be fine, and a new transmission mount will be needed, but this does not look impossible, makebe even with sierra transfer case mounts.
PS... My dream gearbox would be a trimatic (three speed vit) with a manual valve body (available) compression braking on all gears (possible, apparently, but normally disabled with a manual valve body) and a reverse pattern (not available with a trimatic manual valvebody)
I think this would give all the advantages of an auto and most of the control of a manual.
Steve.
Posted: Mon Feb 26, 2007 6:11 am
by fool_injected
4play (Vic) make a divorced transfer kit
(0?) 9761 4694
Posted: Mon Feb 26, 2007 7:59 am
by mugginsmoo
fool_injected wrote:4play (Vic) make a divorced transfer kit
(0?) 9761 4694
haven't they closed?,
last i heard was that they had shut-up shop, could be wrong though.
Mitch
Posted: Mon Feb 26, 2007 8:51 am
by mud4b
Gwagensteve wrote:The output shaft of the vitara auto has the same spline/dimeter as the output of a sierra gearbox.
You will need to make a plate to cover the rear of the vitara case, with a seal and support bearing that has the same ID as the OD of the sierra slip yoke.
I have this all sitting in a chassis in the shed so I have spent a bit of time figuring it out, but I haven't actually built it yet. Doesn't look to hard though.
You will have to take about 1.5" out of the jackshaft, which should be fine, and a new transmission mount will be needed, but this does not look impossible, makebe even with sierra transfer case mounts.
PS... My dream gearbox would be a trimatic (three speed vit) with a manual valve body (available) compression braking on all gears (possible, apparently, but normally disabled with a manual valve body) and a reverse pattern (not available with a trimatic manual valvebody)
I think this would give all the advantages of an auto and most of the control of a manual.
Steve.
spot on..
you will also have to cut the floor and tunnel. you need 1.5" into the floor and 2" from the floor up the tunnel..
i have a vitara 3 speed, flex plate and torque convertor , adaptor for divorced t-case and jackshaft sitting here atm.
pm me if your keen.