1988 300E transmission and front end questions.

I just picked up my car this afternoon from a transmission shop, which replaced a rebuilt transmission I purchased. The history of the replacement transmission is that it was rebuilt to serve as a spare for an 88 300E Brabus 3.6.

On my way home, I noticed that the transmission, short of violently, jerks the car forward when engaging in drive (that is with my feet hard on the brakes). I'm not sure, but this seems to be coming from the differential area. While driving, the transmission is smooth, however, I feel a slight lurch in one of the lower gears (seems like second), when accelerating. The transmission shop tested the tranny before placing it in the car, and they said it was fine. They also performed a road test before calling me to pick it up. My question is, could the tranny have been built for racing, and is that why I'm experiencing this, or is this a sign of a problem, such as a bad transmission, or maybe a differential problem (before handing over the car, the shop owner told me that he adjusted the tranny a couple of times; he is known to be one of the best in the area).

Sorry for the length of this question.

Thanks

[Benzmac]

Did you check on the cost of a factory reman unit before taking your car to a trans shop? You might be surprised to hear that MB is very reasonable on their reman units. I have seen repair bills on other shops that surpassed the cost of replacing the whole trans with the rebuilt factory unit believe it or not.
Is it in the Brabus car?

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Yes I did check with my Mercedes Benz Dealer. I don't remember exactly how much they wanted for the transmission, but it would have cost me about $3,000 for Mercedes to provide and install a remanufactured transmission in my car. I could not afford that option.

About two months ago I posted a question, requesting advice about how to proceed. I mentioned that I was purchasing a remanufactured transmission from a well known company that sells Mercedes parts and accessories on the internet. That particular transmission belonged to the owner of that company, which he sold at a reasonable price. (he told me that he kept the tranny as a spare for the Brabus, which he had already disposed off).

I asked my dealer, as well as, on your bulletin board if it would work with my car, and either you or Bill Woods said it would. You had not begun selling parts at the time. I also replaced the flex disks and U joint.

Do you think I have a major problem? Is there a difference in the output produced by a racing tranny as opposed to a regular tranny, or are they both the same? If the forward lurch that occurs when I place the car in drive is just an inconvenience, I can deal with that, however, if it is a sign of major problems to come, I'm worried.

Please note that my old transmission slammed for more than three years before burning out (could this mean that I may have some worn bushings or parts in the rear of my car, and that the problem is not with the tranny)?

Thank you in advance

[This message has been edited by Larry (edited 08-03-1999).]