Question:
Everything that I haven't changed myself is stock. I know the newer trucks come with different rear axles but I don't know about a 1994. I'm looking at Positrac and I have to know what gearing I have.
Answers:
I have a 1990 Caprice stock,and i want to add 24 inch rims. What would I have to buy to add 24 inch rims?
Chevrolet's stamp a number on the axle tube on the drivers side of the vehicle that identifies the gear ration in the housing. There is a tag on one of the cover bolts that tells what type of gear oil to run in it, if it is a posi-traction rear end. If you can get this code off the tube, and go to www.nationaldrivetrain.com or Richmond Gear web site, you will find a place in the technical section that can identify the rear end you have. The best and safest way to do this is to remove the cover, and the ratio is stamped right on the ring gear. This way you won't be guessing, and you can measure the diameter of the ring gear, and how many bolts it has mounting it to the carrier. I have seen some that were different than what was on the tube, due to someone had put different gears in the housing when they repaired a bad bearing. I wouldn't take a chance on it. I would pull that cover, and see what is in there. I build a lot of rear ends for myself and other customers, so to be honest with you, the only true way to know, is to look in there on the ring gear.
A tag on the pumpkin is refering to a Ford rear end, as Chevrolet's don't use the pumpkin style, they build the assembly inside the housing. A Ford rear end comes out as an assembly, and has a tag on one of the studs that identifies the ratio, where as GM does it differently.
Glad to help out, Good Luck!
Has anyone seen the C4 Picasso in the flesh? If so opinions please?
Spicer Info tag on pumpkin will have all the info you need.
In A Quick Hurry if at all possible please. I got a '68 Pontiac Firebird, need 2 know the firing sequence ;)
There is a tag in the glove box with a code on it write it down and call your local dealer they will tell you all you need to know about the gears.
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Get me the last 8 digits of the VIN and I can tell you exactly what the gear ratio is.
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Chevy V-6 torquers coupled with auto trans. are netorious for shallow rear gear drives. Embarassing city traffic involves old tech 3'rd series housings maxed out with 373 gears with this tranny. Precision driveshaft engineering provides piece of mind when traveling 130+MPH. Wide low profile rubber along with brake(radical trailering spec) alterations begin to give you an inkling of real-world performance. 572ci's of aluminum engine pervailence will have you wearing crash gear unimagined!
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