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Okay - in preparation for my 4WD Conversion, I took some measurements today. I want you guys to check my math. I have to get my Front Driveshaft Lengthened, and my Rear Driveshaft Shortened, and these measurements have to be right!
If someone with a 98 - 04 Tacoma, with a stock Tranny & T-Case can doublecheck my measurements, that would be a big help too.
Here's what I've got:
Driveshafts were measured from output flange -to- Center Support Bearing (Center of bolt)
Prerunner:
Tail-housing -to- Rear Output Flange = 6"
Driveshaft = 39 1/2"
Stock 4WD:
T-Case + Tail-housing = X"
Driveshaft = 27 1/2"
My 4WD Conversion:
Adapter Plate Kit = 8 1/2"
T-Case = 12 3/4"
TOTAL LENGTH = 21 1/4
Stock 4WD Driveshaft will need to be shortened 3 1/4"
My Math:
39.5" + 6" = 45.5" (amount of space from CSB -to- Transmission)
45.5 - 27.5 = 18" ( X = 18" [stock 4WD T-case])
18" - 21.25 = -3.25
So - Stock 4WD D-Shaft = 27.5 - 3.25 = 24.25"
24.25" + 21.25" = 45.5" = amount of space from CSB -to- Transmission
Sound about right?
Jim @ Inchworm told me that I would need to Shorten/Lengthen my Driveshafts by about 4". Are my Stock 4WD Measurements off? My measurements are all based off of mathematic calculations - I don't actually have a stock 4WD to look at and/or measure.



One more thing:
In the pictures above, I noted the placement of the Speed Sensors. I've got that down. But what in the hell is this:

If someone with a 98 - 04 Tacoma, with a stock Tranny & T-Case can doublecheck my measurements, that would be a big help too.
Here's what I've got:
Driveshafts were measured from output flange -to- Center Support Bearing (Center of bolt)
Prerunner:
Tail-housing -to- Rear Output Flange = 6"
Driveshaft = 39 1/2"
Stock 4WD:
T-Case + Tail-housing = X"
Driveshaft = 27 1/2"
My 4WD Conversion:
Adapter Plate Kit = 8 1/2"
T-Case = 12 3/4"
TOTAL LENGTH = 21 1/4
Stock 4WD Driveshaft will need to be shortened 3 1/4"
My Math:
39.5" + 6" = 45.5" (amount of space from CSB -to- Transmission)
45.5 - 27.5 = 18" ( X = 18" [stock 4WD T-case])
18" - 21.25 = -3.25
So - Stock 4WD D-Shaft = 27.5 - 3.25 = 24.25"
24.25" + 21.25" = 45.5" = amount of space from CSB -to- Transmission
Sound about right?
Jim @ Inchworm told me that I would need to Shorten/Lengthen my Driveshafts by about 4". Are my Stock 4WD Measurements off? My measurements are all based off of mathematic calculations - I don't actually have a stock 4WD to look at and/or measure.



One more thing:
In the pictures above, I noted the placement of the Speed Sensors. I've got that down. But what in the hell is this:
