901 Transmission repair

[helidoc]

Anyone have any good recommendations for a shop in the SF Bay Area that can do the back lash adjustment for the ring and piņon gear on the 901 5 speed manual transmission. I have rebuilt and done everything else but although everything looks good would like to check it and don't have the proper tool or experience. I have tried to jury-rig up some dial gauges but am not confident about what I am seeing, at least enough to stick it and the engine back in. Thanks.