« on: Nov 16, 2011, 02:21:12 PM »
You can use a 21 spline t-case if you put in a 23 spline input gear. Direct swap. The bearing and snap ring is the same too. Just need a gear.
Is the trans set up for a forward shift or top shift case? Shift rails are interchangable too so not a big deal to find a t-case that will work.
![](https://board.marlincrawler.com/Themes/MCI_V3C/images/ip.gif)
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88 Pickup SAS'd, 3.4 V6, R151F Hybrid, Dual Ultimate, Triple sticks, 35's, 5.29's, HP front, V6 rear, Aussies, 63" Chevs, Anti Wrap Bar, Warn 8274 on Home Built Bumper
4WU linked 86 Xtra Cab build in progress