ccraviotto's 1987 4Runner Long Travel Build-Up Thread
11-10-2010, 05:04 PM
#22
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I had a couple of front crossmember designs I played around with over the years. All four of these designs lovered the diff to lesson the CV angle. Unfortunatly this exposed them to obstructions on the trail. The bottom one was nice for ease of install / removal of front diff assembly. Just roll a tranny jack under it and lower it down. I dreaded lifting that thing up and over font or rear diff crossmembers. You still need the crossmembers for strength but its easy to remove them without the diff weight bearing down and attachment connections in the way.
Last edited by BlazeN8; 11-10-2010 at 05:11 PM.
11-10-2010, 08:07 PM
#23
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Thread Starter
I had a couple of front crossmember designs I played around with over the years. All four of these designs lovered the diff to lesson the CV angle. Unfortunatly this exposed them to obstructions on the trail. The bottom one was nice for ease of install / removal of front diff assembly. Just roll a tranny jack under it and lower it down. I dreaded lifting that thing up and over font or rear diff crossmembers. You still need the crossmembers for strength but its easy to remove them without the diff weight bearing down and attachment connections in the way.
11-10-2010, 08:38 PM
#24
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by the looks of that one photo where you show the clearance of the diff to oil pan, if you did not have the bracket lift and engine drop (equaling effectively a 1" bracket lift) you would not clear. 
Just throwing that out there in case someone tries this on a truck that doesn't have the bracket lift. Looks good though, I admire the creativeness.
Just throwing that out there in case someone tries this on a truck that doesn't have the bracket lift.
Looks good though, I admire the creativeness. Last edited by ccraviotto; 11-10-2010 at 08:43 PM.
11-11-2010, 09:22 AM
#25
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I concur, to center mount the 7.5" diff the "drop bracket" really simplifys matters. Oil pan modification and/or relocating the diff takes some R&D. Another nice thing about the centermount is you won't have to cut off the crossmember to frame tabs on the passenger side like you do in the standard drop bracket diff location. In the second picture I posted above you can see the tabs I am talking about.
11-11-2010, 08:31 PM
#26
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This as got me thinking about doing a 2" body lift, making some 2" motor mount spacers (a little trig involved there) and moving the diff. I'm considering just trying to move it 3" over towards the center, cutting down the tube side of the diff 6" (have to get the axle part cut and resplined, how much is that usually?) and then using T100 half shafts. I'll see when I get home in March.
11-12-2010, 10:43 AM
#27
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This as got me thinking about doing a 2" body lift, making some 2" motor mount spacers (a little trig involved there) and moving the diff. I'm considering just trying to move it 3" over towards the center, cutting down the tube side of the diff 6" (have to get the axle part cut and resplined, how much is that usually?) and then using T100 half shafts. I'll see when I get home in March.
Last edited by ccraviotto; 11-12-2010 at 11:06 AM.
11-16-2010, 10:24 AM
#29
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Last edited by ccraviotto; 11-16-2010 at 01:41 PM.
11-16-2010, 10:52 AM
#31
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Last edited by ccraviotto; 11-16-2010 at 01:42 PM.
11-16-2010, 01:27 PM
#32
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Last edited by ccraviotto; 11-16-2010 at 01:42 PM.
11-16-2010, 01:44 PM
#34
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11-16-2010, 01:45 PM
#35
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11-17-2010, 02:22 AM
#37
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I can't remember from the last time I had the front end apart. So the splined part is bigger than the rest of the long side shaft? That would put a little hitch in my plan......
It looks like you also have a 'LT' of some sort on your 4 runner.
It looks like you also have a 'LT' of some sort on your 4 runner.
11-17-2010, 05:06 AM
#38
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yes i do .I will Take a closer look at the long side axle and get back to you. if you could do something along the lines of what you are thinking you could get a lot of wheel travel out of a narrow front end. that would be cool.
11-17-2010, 09:48 AM
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Blazeland+Supra Diff+Tim's axles+ccraviotto's diff mount / crossmember just might be a winning (albeit pricey) combination. You guys should go into business together! It seems like you might almost have a complete system.
https://www.yotatech.com/forums/f37/...k-peak-217626/
Blazeland+Supra Diff+Tim's axles+ccraviotto's diff mount / crossmember just might be a winning (albeit pricey) combination. You guys should go into business together! It seems like you might almost have a complete system.
https://www.yotatech.com/forums/f37/...k-peak-217626/
Last edited by Mountain Cop; 11-18-2010 at 07:37 AM.
