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Tcase drop questions

Leper

Leper

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Hey all,
I am dropping my tcase 1" with some box tubing. Is there anything I will need to lengthen/shorten for this? Just looking for any problems or concerns associated with doing this job before I start.
TIA
Leper
BTW 91 Blazer 350/700/241, ft 4" springs and zerorate, rear ORD shackle flip with zero rate.
 
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I came across a site that says not to dop the tcase because of the way it makes the engine sit. Anyone ever have a problem with a drop or know a detailed reason why not to?
 
on my old 78 blazer i had a 6" suspention lift and kept breaking the rear drive shaft. I was told by the manufacture of the drive shaft to drop my t-case 1 inch and add 6 degree shims in the rear. After i did that. I had better highway driving, and no breakage. I also ran 35" BFG All Terrains with 4.10 gears
 
Leper said:
I came across a site that says not to dop the tcase because of the way it makes the engine sit. Anyone ever have a problem with a drop or know a detailed reason why not to?
Click to expand...

You could run into problems with the distributor being too close or actually hitting the firewall.....especially if you have the large cap HEI.

My 1" drop worked fine on my 86 (with the large cap HEI).
 
Leper said:
Hey all,
I am dropping my tcase 1" with some box tubing.
Click to expand...
why not just use the factory 1" spacers? thats what most people do.

another problem with dropping the T/C is that it puts added stress on the frame where the crossmember mounts. maybe if you used box tubing it would be a little stronger than the factory spacers.ive seen pics of the bolts tearing loose @ the frame from dropped crossmembers.
 
Jonny-K5 said:
why not just use the factory 1" spacers? thats what most people do.

another problem with dropping the T/C is that it puts added stress on the frame where the crossmember mounts. maybe if you used box tubing it would be a little stronger than the factory spacers.ive seen pics of the bolts tearing loose @ the frame from dropped crossmembers.
Click to expand...

That is exactly why. Those stock spacers put too much stress on the frame and cross member. Using tube or something with a larger diameter works a lot better.

On a side note, that kind of a backwards solution. You are taking away the lift you paid for. Just my experiences, take it as you will.
 
Yes. When I dropped mine with home made spaces it made the angle of the front shaft worse and it contacting the crossmember slighty. You will also most likely have to adjust your tcase linkage. And your entire drivetrain now rests on an angle, everything shifted harder.

I took them out.





Leper said:
I came across a site that says not to dop the tcase because of the way it makes the engine sit. Anyone ever have a problem with a drop or know a detailed reason why not to?
Click to expand...
 
Thats enough info for me. Not gonna do it. Anyone want to buy some 1" tubing predrilled for dropping a tcase?
 
Leper said:
I came across a site that says not to dop the tcase because of the way it makes the engine sit. Anyone ever have a problem with a drop or know a detailed reason why not to?
Click to expand...
'85 Sub+2", I raised the "W" by taking out the 1" spacers; for more break-over, no problems front or rear. :burb:
 
On adjusting the x-fer case linkage: that only applies to the 208/241. The 203/205 do not mount to the floor.
 
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