NP 205 and speedo gears - The 1947 - Present Chevrolet & GMC Truck Message Board Network

utvaquero59 · 10-18-2007, 01:52 PM

OK, I've been searching for the last 1/2 hour with little success. I've got a '71 4x4 w/NP205 t-case and I'd like to get my speedo working again. I've got a new cable on the way and wanted to replace the drive and driven gears with the appropriate ones to get my speedo accurate. I called a couple places and one told me I needed an 8-tooth drive gear and a 20-tooth driven gear for a TH-350/NP205 combo, 4.10:1 gears, and 31 5/8" nominal tire height 33x12.50 R16.5's.

So, assuming he's correct--WHERE THE CRAP can I find such gears? Everything I've found that's the right tooth count is for TH-350 trannies but nobody can tell me if those gears fit in the t-case. My guess is they don't so can you guys help me out here?

10-18-2007, 01:52 PM	#1
utvaquero59 Registered User Join Date: Aug 2007 Location: St. George, UT Posts: 70	NP 205 and speedo gears OK, I've been searching for the last 1/2 hour with little success. I've got a '71 4x4 w/NP205 t-case and I'd like to get my speedo working again. I've got a new cable on the way and wanted to replace the drive and driven gears with the appropriate ones to get my speedo accurate. I called a couple places and one told me I needed an 8-tooth drive gear and a 20-tooth driven gear for a TH-350/NP205 combo, 4.10:1 gears, and 31 5/8" nominal tire height 33x12.50 R16.5's. So, assuming he's correct--WHERE THE CRAP can I find such gears? Everything I've found that's the right tooth count is for TH-350 trannies but nobody can tell me if those gears fit in the t-case. My guess is they don't so can you guys help me out here?



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