How To Speedo Gear Correction - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gcburdic · 05-23-2009, 07:46 AM

Hey 70GMCer,

This is a GREAT write up....My speedo housing is leaking like a sieve.....did you do this on the ground???...or did you jack up the back of the truck to avoid losing alot of tranny fluid????

Legolas894 · 05-23-2009, 07:56 AM

Great posting-Will help a lot.

70GMCer · 05-23-2009, 10:20 AM

Quote:

Originally Posted by gcburdic

Hey 70GMCer,

This is a GREAT write up....My speedo housing is leaking like a sieve.....did you do this on the ground???...or did you jack up the back of the truck to avoid losing alot of tranny fluid????

Yep.....jacked the back of the truck up to allow most of the fluid to run toward to front. Went to about 14" off the ground in the rear. Jack stands of course, with the floor jack under the rear end housing. Still ended up losing about a quart. Glad that's all I lost......

70c10 · 05-23-2009, 08:44 PM

Nice write up Steve! Mine reads 10 over the limit. I was told I need the yellow gear that slips in at the cable.

70GMCer · 05-24-2009, 07:05 AM

Quote:

Originally Posted by 70c10

Nice write up Steve! Mine reads 10 over the limit. I was told I need the yellow gear that slips in at the cable.

Jim.....add that to the list of things we have to do to your truck....lol

05-23-2009, 07:46 AM	#1
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: How To Speedo Gear Correction Hey 70GMCer, This is a GREAT write up....My speedo housing is leaking like a sieve.....did you do this on the ground???...or did you jack up the back of the truck to avoid losing alot of tranny fluid???? __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

05-23-2009, 07:56 AM	#2
Legolas894 Chemist under the hood... Join Date: Apr 2009 Location: Fort Erie,ON, Canada Posts: 617	Re: How To Speedo Gear Correction Great posting-Will help a lot. __________________ Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD]

05-23-2009, 08:44 PM	#4
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Re: How To Speedo Gear Correction Nice write up Steve! Mine reads 10 over the limit. I was told I need the yellow gear that slips in at the cable. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads



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