left work driving the 90 chevy 4x4 and just as I was outta town doing 70-80 km I heard a big bang like a tire had blown. Then it was pulling to the right. Stopped and got out looking for a blown tire and nothing. Got in and drove foreward....rt front wheel was locked up so to get off the hwy I slide the truck on the icy shoulder about 400' to the next side rd. Called CAA.
So the front diff is blown I guess. Found another one from a 98 with 7500km on it. Apparently the seller got it 15 yrs ago from a rolled truck and it sat under the bench.
Luckily this didn't happen on dry pavement while I as doing 110km
-- Edited by Rustynuts on Wednesday 14th of January 2015 07:31:40 AM
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
Thankfully you were able to keep the truck under control. Well done.
Good luck with the repairs, I assume the gear ratio on the new unit is the same?
yes its a 3.42 and I also am getting the a arms torsion bars spindles etc that was on that truck plus some engine parts like tbi distributor fan etc.
The throttle body between the 2 GMT 400 trucks will be different. Also the distributer will be different. The TBI truck uses the conventional type distributer, the Vortec uses a flat crab type distributer cap. The 88-95 GMT-400 trucks all use the TBI(throttle body injection)/350, while the 1996-1999 GMT-400 trucks use the CSFI(Centralport Sequential Fuel Injection) Vortec 305/350.
The heads, intake, injection are different between those year breaks. If your 1990 truck uses the big assed nut to hold the fan on the waterpump than it will interchange, if not it wont.
I am bringing the truck into the warm garage and onto the hoist tonight. I was thinking that it can't be the diff since the other wheel turns freely. I'm wondering if the big bang I heard was a massive failure of the brake rotor which locked the wheel?
any thoughts?
Dennis
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
thanks...I should have remembered about the transition years.....no sense buying parts I don't need...unless I get them for free.
Hog wrote:
Rustynuts wrote:
Offset wrote:
Thankfully you were able to keep the truck under control. Well done.
Good luck with the repairs, I assume the gear ratio on the new unit is the same?
yes its a 3.42 and I also am getting the a arms torsion bars spindles etc that was on that truck plus some engine parts like tbi distributor fan etc.
The throttle body between the 2 GMT 400 trucks will be different. Also the distributer will be different. The TBI truck uses the conventional type distributer, the Vortec uses a flat crab type distributer cap. The 88-95 GMT-400 trucks all use the TBI(throttle body injection)/350, while the 1996-1999 GMT-400 trucks use the CSFI(Centralport Sequential Fuel Injection) Vortec 305/350.
The heads, intake, injection are different between those year breaks. If your 1990 truck uses the big assed nut to hold the fan on the waterpump than it will interchange, if not it wont.
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
Strange .... seems I'm the only one who thinks you may have a rather large chunk of moose torso jammed between the tire and the inner fender ... certainly explains the "B A N G" and the tire/wheel rotation issue.
-- Edited by pint and a pound on Thursday 15th of January 2015 04:45:32 PM
Rustuynuts-I love that Pontiac! Does it have a straight axle?
no straight axle but I did use the 70's era upper control arm C bracket and 6 cyl wagon coil springs.....then longer flex brake lines and modified the bump stop.
I tried to keep it like a 70 s car
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
Pleased for you. Good luck putting it all back together.
It sounds less expensive already which is always a good thing.
today got all new rotors, flex lines, calipers,bearing hubs,discs along with heater coil and oxy sensor so this weekend I will be playing in the garage saving $75.00/hr in labour...lol
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
so after 2 days and about 10 hrs later I have all new brakes wheel bearing hubs and decided to do the oxygen sensor and the heater core I have had sitting on the bench for a year. The core was a big PITA because of one screw between the heater cover and the firewall. I could just get a finger tip on it and luckily I have a flex 1/4 " driver with a screwdriver handle. I spent 1 hr removing that friggin screw and it did not get replaced....LOL
BTW the other bearing hub was almost falling apart too........really odd since I heard no warning signs....oh well done now.
300 km to go and it will turn over to 300,000 km
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if the time ever comes you can't see it, you can lay on your back and do it from underneath.
