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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: low3+3 on July 29, 2007, 06:28:24 pm

Title: n e one have a junk 700 r4?
Post by: low3+3 on July 29, 2007, 06:28:24 pm

i just had a friend swap a 2wd output shaft and housing on my 700 r4 but i need the speedo parts

Title: Re: n e one have a junk 700 r4?
Post by: VileZambonie on July 29, 2007, 08:15:48 pm

What exactly do you need and what did you do? ???

Title: Re: n e one have a junk 700 r4?
Post by: low3+3 on July 29, 2007, 08:24:58 pm

the trans was from a 4wd blazerso he pulled off the transfer case and put in a 2wd out put shaft. on the side of the housing  is about 1 1\2 in hole and you can see the shaft. im told i need the gear that goes on the shaft, the drive gear( both are small plastic pieces) and the plug and retainer fork that the speedo cable screws on to.

Title: Re: n e one have a junk 700 r4?
Post by: DnStClr on July 31, 2007, 11:51:43 am

The speedo gears are different colors for different rear axle ratios. Transmission websites are your best bet for the gears and yokes.

 If you don't know the rear axle ratio, you can find it by jacking up one rear wheel, marking the tire and the driveshaft, and turning the tire around 2 complete turns. See how many times the driveshaft has turned as you spin the wheel (tire). If the axle has turned 3 times, the ratio is 3:1 (3.08:1 rear end). If the axle has turned about 3 and 1/2 turns, it's a 3.42 rear end, etc.