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Old 03-14-2021, 01:41 AM   #16
79vette
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Join Date: Jan 2017
Location: Sandy, UT
Posts: 191
Re: Help Check My Gear Pattern

Well, I am 99% sure it would have worked fine with them swapped, but I took everything back apart and did it right.

Took it for a test drive, and the new 3.73 gears are what I wanted. I have a twin-sticked NP205, so I tried out the 3.73 in the front axle with the rear in neutral at the transfer case. Then I put the front in neutral and drove with the 4.56 in the rear to get a direct comparison (just dont put it into 4x4!). I am going to take it slow and easy on the new gears for 100 miles or so, but the highway drivability is going to be night and day.

Going to try to knock out the rear axle next weekend so I can have 4x4 again.

Thanks again for all the help with this axle build. It was my first time and I was a bit intimidated, but overall it wasn't that hard with some help.
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1988 "Crane Truck" C30 - 350, SM465, with a 15' knuckle crane - thread
1986 M1009 - 6.2 Diesel, SM465, 2 speed aux trans, NP205 - thread
1979 Corvette - 350 T5
1977 Jimmy - 350, TH400, NP203
1982 Blazer - 350, 700R4, NP208 - Totalled, now a parts truck
Scratch built 16' flatbed trailer - thread
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