Type-9 4WD to Type-9 RWD

[Robinxr4i]

Say I had a mk1 Sierra XR4x4 with a type-9 4wd gear box, would a type-9 rwd box be a direct fit length wise? for the prop shaft ect?

Sorry for no cool pics this is only a quick lunchtime request ;D

Gotta get back to work!

[stealthstylz]

Prop is shorter on the 4x4s iirc.

Matt

[stealthstylz]

Oh and why would you want to make a XR4x4 rear wheel drive they're handle really well if you learn how to drive them properly, and can go very sideways.

Matt

[popuptoaster]

yup, used to get my old 4x4 ghia estate sideways on a regular basis.

[scaryoldcortina]

You can even fit a RWD tailshaft to the 4x4 main case (saving the cost of a RWD v6 type 9) if you want to

[scaryoldcortina]

Like this one ;D

[Robinxr4i]

Apr 28, 2010 14:01:01 GMT scaryoldcortina said:

You can even fit a RWD tailshaft to the 4x4 main case (saving the cost of a RWD v6 type 9) if you want to

I guess that just gets rid of the transfer box? Do you still need a shorter prop?

Apr 28, 2010 12:00:03 GMT stealthstylz said:

Oh and why would you want to make a XR4x4 rear wheel drive they're handle really well if you learn how to drive them properly, and can go very sideways.

Matt

I know you can get the xr4x4 sideways and I know they handle well, but I prefer rwd. Drive a few 4wd sierras and I've always loved the 2wd ones more. The way I've looked at it is I can't afford a xr4i and I want a rwd V6 sierra. I've been offered a tatty xr4x4 and I want to skid it, so rwd is what I want to do.

[scaryoldcortina]

I'm not sure you DO need a shorter prop - I can't 100% confirm, because I haven't ever made an XR4x4 into RWD.. but, that box I built, the one in the picture? After I unbolted and removed the center diff, chain drive and housing from the box, a standard t9 tail fitted it perfectly. The output shaft is the same one, ergo the boxes are the same length. All I had to do to the output shaft was fit a speedo drive gear to it (It even has the machined flat to take one )

[popuptoaster]

Cant remember about the prop length, not that its hard to go look for a 2wd prop if you find out the 4x4 one don't fit.

Its not a bad plan converting a 4x4, they come lowered with gas shocks and LSD and all the toys usually so it saves you adding them your self, easy to fit the 24v to a V6 as well.

[Autofive]

just a small point (you have probably already have thought of)

you will need to change the sump to steel 2wd one

[sheffieldcortinacentre]

only the 4x4's with rear discs had lsd's. the type 9 4x4 & 2wd are same length prop, the mt75 4x4 are shorter front half of prop compared to 2wd.

[Robinxr4i]

I've brought the Sierra ;D Anyway.........

Apr 30, 2010 11:23:17 GMT Autofive said:

just a small point (you have probably already have thought of)

you will need to change the sump to steel 2wd one

I was going to get the alloy sump tig'd up.

May 1, 2010 0:17:34 GMT sheffieldcortinacentre said:

only the 4x4's with rear discs had lsd's. the type 9 4x4 & 2wd are same length prop, the mt75 4x4 are shorter front half of prop compared to 2wd.

thanks for the prop shaft info.

[popuptoaster]

I didnt know they did any 4x4's with rear drums, but then i've only had Ghias or XR's so they came with all the good stuff, ya live and learn.

[sheffieldcortinacentre]

the mk1 2.8's had drums.

[popuptoaster]

Maybe not all of em, my 2.8i ghia estate had discs on the back, you can just about see em here.